31465980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:165

約数の個数: 288

約数和(自身を含む): 125483904

約数和(自身を除く): 94017924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 17, 18, 20, 21, 26, 28, 30, 34, 35, 36, 39, 42, 45, 51, 52, 60, 63, 65, 68, 70, 78, 84, 85, 90, 91, 102, 105, 113, 117, 119, 126, 130, 140, 153, 156, 170, 180, 182, 195, 204, 210, 221, 226, 234, 238, 252, 255, 260, 273, 306, 315, 339, 340, 357, 364, 390, 420, 442, 452, 455, 468, 476, 510, 546, 565, 585, 595, 612, 630, 663, 678, 714, 765, 780, 791, 819, 884, 910, 1017, 1020, 1071, 1092, 1105, 1130, 1170, 1190, 1260, 1326, 1356, 1365, 1428, 1469, 1530, 1547, 1582, 1638, 1695, 1785, 1820, 1921, 1989, 2034, 2142, 2210, 2260, 2340, 2373, 2380, 2652, 2730, 2938, 3060, 3094, 3164, 3276, 3315, 3390, 3570, 3842, 3955, 3978, 4068, 4095, 4284, 4407, 4420, 4641, 4746, 5085, 5355, 5460, 5763, 5876, 6188, 6630, 6780, 7119, 7140, 7345, 7684, 7735, 7910, 7956, 8190, 8814, 9282, 9492, 9605, 9945, 10170, 10283, 10710, 11526, 11865, 13221, 13260, 13447, 13923, 14238, 14690, 15470, 15820, 16380, 17289, 17628, 18564, 19210, 19890, 20340, 20566, 21420, 22035, 23052, 23205, 23730, 24973, 26442, 26894, 27846, 28476, 28815, 29380, 30849, 30940, 34578, 35595, 38420, 39780, 40341, 41132, 44070, 46410, 47460, 49946, 51415, 52884, 53788, 55692, 57630, 61698, 66105, 67235, 69156, 69615, 71190, 74919, 80682, 86445, 88140, 92547, 92820, 99892, 102830, 115260, 121023, 123396, 124865, 132210, 134470, 139230, 142380, 149838, 154245, 161364, 172890, 174811, 185094, 201705, 205660, 224757, 242046, 249730, 264420, 268940, 278460, 299676, 308490, 345780, 349622, 370188, 374595, 403410, 449514, 462735, 484092, 499460, 524433, 605115, 616980, 699244, 749190, 806820, 874055, 899028, 925470, 1048866, 1123785, 1210230, 1498380, 1573299, 1748110, 1850940, 2097732, 2247570, 2420460, 2622165, 3146598, 3496220, 4495140, 5244330, 6293196, 7866495, 10488660, 15732990, 31465980]

約数ペア:

[(1, 31465980), (2, 15732990), (3, 10488660), (4, 7866495), (5, 6293196), (6, 5244330), (7, 4495140), (9, 3496220), (10, 3146598), (12, 2622165), (13, 2420460), (14, 2247570), (15, 2097732), (17, 1850940), (18, 1748110), (20, 1573299), (21, 1498380), (26, 1210230), (28, 1123785), (30, 1048866), (34, 925470), (35, 899028), (36, 874055), (39, 806820), (42, 749190), (45, 699244), (51, 616980), (52, 605115), (60, 524433), (63, 499460), (65, 484092), (68, 462735), (70, 449514), (78, 403410), (84, 374595), (85, 370188), (90, 349622), (91, 345780), (102, 308490), (105, 299676), (113, 278460), (117, 268940), (119, 264420), (126, 249730), (130, 242046), (140, 224757), (153, 205660), (156, 201705), (170, 185094), (180, 174811), (182, 172890), (195, 161364), (204, 154245), (210, 149838), (221, 142380), (226, 139230), (234, 134470), (238, 132210), (252, 124865), (255, 123396), (260, 121023), (273, 115260), (306, 102830), (315, 99892), (339, 92820), (340, 92547), (357, 88140), (364, 86445), (390, 80682), (420, 74919), (442, 71190), (452, 69615), (455, 69156), (468, 67235), (476, 66105), (510, 61698), (546, 57630), (565, 55692), (585, 53788), (595, 52884), (612, 51415), (630, 49946), (663, 47460), (678, 46410), (714, 44070), (765, 41132), (780, 40341), (791, 39780), (819, 38420), (884, 35595), (910, 34578), (1017, 30940), (1020, 30849), (1071, 29380), (1092, 28815), (1105, 28476), (1130, 27846), (1170, 26894), (1190, 26442), (1260, 24973), (1326, 23730), (1356, 23205), (1365, 23052), (1428, 22035), (1469, 21420), (1530, 20566), (1547, 20340), (1582, 19890), (1638, 19210), (1695, 18564), (1785, 17628), (1820, 17289), (1921, 16380), (1989, 15820), (2034, 15470), (2142, 14690), (2210, 14238), (2260, 13923), (2340, 13447), (2373, 13260), (2380, 13221), (2652, 11865), (2730, 11526), (2938, 10710), (3060, 10283), (3094, 10170), (3164, 9945), (3276, 9605), (3315, 9492), (3390, 9282), (3570, 8814), (3842, 8190), (3955, 7956), (3978, 7910), (4068, 7735), (4095, 7684), (4284, 7345), (4407, 7140), (4420, 7119), (4641, 6780), (4746, 6630), (5085, 6188), (5355, 5876), (5460, 5763)]