1780051980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^2\times {\mathrm{67}}^1$

素因数の和:225

約数の個数: 288

約数和(自身を含む): 6223246848

約数和(自身を除く): 4443194868

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 61, 67, 68, 70, 84, 85, 102, 105, 119, 122, 134, 140, 170, 183, 201, 204, 210, 238, 244, 255, 268, 305, 335, 340, 357, 366, 402, 420, 427, 469, 476, 510, 595, 610, 670, 714, 732, 804, 854, 915, 938, 1005, 1020, 1037, 1139, 1190, 1220, 1281, 1340, 1407, 1428, 1708, 1785, 1830, 1876, 2010, 2074, 2135, 2278, 2345, 2380, 2562, 2814, 3111, 3417, 3570, 3660, 3721, 4020, 4087, 4148, 4270, 4556, 4690, 5124, 5185, 5628, 5695, 6222, 6405, 6834, 7035, 7140, 7259, 7442, 7973, 8174, 8540, 9380, 10370, 11163, 11390, 12261, 12444, 12810, 13668, 14070, 14518, 14884, 15555, 15946, 16348, 17085, 18605, 20435, 20740, 21777, 22326, 22780, 23919, 24522, 25620, 26047, 28140, 28609, 29036, 31110, 31892, 34170, 36295, 37210, 39865, 40870, 43554, 44652, 47838, 49044, 52094, 55815, 57218, 61305, 62220, 63257, 68340, 69479, 72590, 74420, 78141, 79730, 81740, 85827, 87108, 95676, 104188, 108885, 111630, 114436, 119595, 122610, 126514, 130235, 138958, 143045, 145180, 156282, 159460, 171654, 189771, 208437, 217770, 223260, 239190, 245220, 249307, 253028, 260470, 277916, 286090, 312564, 316285, 343308, 347395, 379542, 390705, 416874, 429135, 435540, 442799, 478380, 486353, 498614, 520940, 572180, 632570, 694790, 747921, 759084, 781410, 833748, 858270, 885598, 948855, 972706, 997228, 1042185, 1246535, 1265140, 1328397, 1389580, 1459059, 1495842, 1562820, 1716540, 1745149, 1771196, 1897710, 1945412, 2084370, 2213995, 2431765, 2493070, 2656794, 2918118, 2991684, 3490298, 3739605, 3795420, 4168740, 4238219, 4427990, 4863530, 4986140, 5235447, 5313588, 5836236, 6641985, 6980596, 7295295, 7479210, 8476438, 8725745, 8855980, 9727060, 10470894, 12714657, 13283970, 14590590, 14958420, 16952876, 17451490, 20941788, 21191095, 25429314, 26177235, 26567940, 29181180, 29667533, 34902980, 42382190, 50858628, 52354470, 59335066, 63573285, 84764380, 89002599, 104708940, 118670132, 127146570, 148337665, 178005198, 254293140, 296675330, 356010396, 445012995, 593350660, 890025990, 1780051980]

約数ペア:

[(1, 1780051980), (2, 890025990), (3, 593350660), (4, 445012995), (5, 356010396), (6, 296675330), (7, 254293140), (10, 178005198), (12, 148337665), (14, 127146570), (15, 118670132), (17, 104708940), (20, 89002599), (21, 84764380), (28, 63573285), (30, 59335066), (34, 52354470), (35, 50858628), (42, 42382190), (51, 34902980), (60, 29667533), (61, 29181180), (67, 26567940), (68, 26177235), (70, 25429314), (84, 21191095), (85, 20941788), (102, 17451490), (105, 16952876), (119, 14958420), (122, 14590590), (134, 13283970), (140, 12714657), (170, 10470894), (183, 9727060), (201, 8855980), (204, 8725745), (210, 8476438), (238, 7479210), (244, 7295295), (255, 6980596), (268, 6641985), (305, 5836236), (335, 5313588), (340, 5235447), (357, 4986140), (366, 4863530), (402, 4427990), (420, 4238219), (427, 4168740), (469, 3795420), (476, 3739605), (510, 3490298), (595, 2991684), (610, 2918118), (670, 2656794), (714, 2493070), (732, 2431765), (804, 2213995), (854, 2084370), (915, 1945412), (938, 1897710), (1005, 1771196), (1020, 1745149), (1037, 1716540), (1139, 1562820), (1190, 1495842), (1220, 1459059), (1281, 1389580), (1340, 1328397), (1407, 1265140), (1428, 1246535), (1708, 1042185), (1785, 997228), (1830, 972706), (1876, 948855), (2010, 885598), (2074, 858270), (2135, 833748), (2278, 781410), (2345, 759084), (2380, 747921), (2562, 694790), (2814, 632570), (3111, 572180), (3417, 520940), (3570, 498614), (3660, 486353), (3721, 478380), (4020, 442799), (4087, 435540), (4148, 429135), (4270, 416874), (4556, 390705), (4690, 379542), (5124, 347395), (5185, 343308), (5628, 316285), (5695, 312564), (6222, 286090), (6405, 277916), (6834, 260470), (7035, 253028), (7140, 249307), (7259, 245220), (7442, 239190), (7973, 223260), (8174, 217770), (8540, 208437), (9380, 189771), (10370, 171654), (11163, 159460), (11390, 156282), (12261, 145180), (12444, 143045), (12810, 138958), (13668, 130235), (14070, 126514), (14518, 122610), (14884, 119595), (15555, 114436), (15946, 111630), (16348, 108885), (17085, 104188), (18605, 95676), (20435, 87108), (20740, 85827), (21777, 81740), (22326, 79730), (22780, 78141), (23919, 74420), (24522, 72590), (25620, 69479), (26047, 68340), (28140, 63257), (28609, 62220), (29036, 61305), (31110, 57218), (31892, 55815), (34170, 52094), (36295, 49044), (37210, 47838), (39865, 44652), (40870, 43554)]