256488540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{11}}^2\times {\mathrm{103}}^1$

素因数の和:158

約数の個数: 288

約数和(自身を含む): 929510400

約数和(自身を除く): 673021860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 49, 55, 60, 66, 70, 77, 84, 98, 103, 105, 110, 121, 132, 140, 147, 154, 165, 196, 206, 210, 220, 231, 242, 245, 294, 308, 309, 330, 343, 363, 385, 412, 420, 462, 484, 490, 515, 539, 588, 605, 618, 660, 686, 721, 726, 735, 770, 847, 924, 980, 1029, 1030, 1078, 1133, 1155, 1210, 1236, 1372, 1442, 1452, 1470, 1540, 1545, 1617, 1694, 1715, 1815, 2058, 2060, 2156, 2163, 2266, 2310, 2420, 2541, 2695, 2884, 2940, 3090, 3234, 3388, 3399, 3430, 3605, 3630, 3773, 4116, 4235, 4326, 4532, 4620, 5047, 5082, 5145, 5390, 5665, 5929, 6180, 6468, 6798, 6860, 7210, 7260, 7546, 7931, 8085, 8470, 8652, 10094, 10164, 10290, 10780, 10815, 11319, 11330, 11858, 12463, 12705, 13596, 14420, 15092, 15141, 15862, 16170, 16940, 16995, 17787, 18865, 20188, 20580, 21630, 22638, 22660, 23716, 23793, 24926, 25235, 25410, 29645, 30282, 31724, 32340, 33990, 35329, 35574, 37389, 37730, 39655, 41503, 43260, 45276, 47586, 49852, 50470, 50820, 55517, 56595, 59290, 60564, 62315, 67980, 70658, 71148, 74778, 75460, 75705, 79310, 83006, 87241, 88935, 95172, 100940, 105987, 111034, 113190, 118580, 118965, 124509, 124630, 141316, 149556, 151410, 158620, 166012, 166551, 174482, 176645, 177870, 186945, 207515, 211974, 222068, 226380, 237930, 249018, 249260, 261723, 277585, 302820, 333102, 348964, 353290, 355740, 373890, 388619, 415030, 423948, 436205, 475860, 498036, 523446, 529935, 555170, 610687, 622545, 666204, 706580, 747780, 777238, 830060, 832755, 872410, 1046892, 1059870, 1110340, 1165857, 1221374, 1245090, 1308615, 1554476, 1665510, 1744820, 1832061, 1943095, 2119740, 2331714, 2442748, 2490180, 2617230, 3053435, 3331020, 3664122, 3886190, 4274809, 4663428, 5234460, 5829285, 6106870, 7328244, 7772380, 8549618, 9160305, 11658570, 12213740, 12824427, 17099236, 18320610, 21374045, 23317140, 25648854, 36641220, 42748090, 51297708, 64122135, 85496180, 128244270, 256488540]

約数ペア:

[(1, 256488540), (2, 128244270), (3, 85496180), (4, 64122135), (5, 51297708), (6, 42748090), (7, 36641220), (10, 25648854), (11, 23317140), (12, 21374045), (14, 18320610), (15, 17099236), (20, 12824427), (21, 12213740), (22, 11658570), (28, 9160305), (30, 8549618), (33, 7772380), (35, 7328244), (42, 6106870), (44, 5829285), (49, 5234460), (55, 4663428), (60, 4274809), (66, 3886190), (70, 3664122), (77, 3331020), (84, 3053435), (98, 2617230), (103, 2490180), (105, 2442748), (110, 2331714), (121, 2119740), (132, 1943095), (140, 1832061), (147, 1744820), (154, 1665510), (165, 1554476), (196, 1308615), (206, 1245090), (210, 1221374), (220, 1165857), (231, 1110340), (242, 1059870), (245, 1046892), (294, 872410), (308, 832755), (309, 830060), (330, 777238), (343, 747780), (363, 706580), (385, 666204), (412, 622545), (420, 610687), (462, 555170), (484, 529935), (490, 523446), (515, 498036), (539, 475860), (588, 436205), (605, 423948), (618, 415030), (660, 388619), (686, 373890), (721, 355740), (726, 353290), (735, 348964), (770, 333102), (847, 302820), (924, 277585), (980, 261723), (1029, 249260), (1030, 249018), (1078, 237930), (1133, 226380), (1155, 222068), (1210, 211974), (1236, 207515), (1372, 186945), (1442, 177870), (1452, 176645), (1470, 174482), (1540, 166551), (1545, 166012), (1617, 158620), (1694, 151410), (1715, 149556), (1815, 141316), (2058, 124630), (2060, 124509), (2156, 118965), (2163, 118580), (2266, 113190), (2310, 111034), (2420, 105987), (2541, 100940), (2695, 95172), (2884, 88935), (2940, 87241), (3090, 83006), (3234, 79310), (3388, 75705), (3399, 75460), (3430, 74778), (3605, 71148), (3630, 70658), (3773, 67980), (4116, 62315), (4235, 60564), (4326, 59290), (4532, 56595), (4620, 55517), (5047, 50820), (5082, 50470), (5145, 49852), (5390, 47586), (5665, 45276), (5929, 43260), (6180, 41503), (6468, 39655), (6798, 37730), (6860, 37389), (7210, 35574), (7260, 35329), (7546, 33990), (7931, 32340), (8085, 31724), (8470, 30282), (8652, 29645), (10094, 25410), (10164, 25235), (10290, 24926), (10780, 23793), (10815, 23716), (11319, 22660), (11330, 22638), (11858, 21630), (12463, 20580), (12705, 20188), (13596, 18865), (14420, 17787), (15092, 16995), (15141, 16940), (15862, 16170)]