31397080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{499}}^1$

素因数の和:545

約数の個数: 96

約数和(自身を含む): 83790000

約数和(自身を除く): 52392920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 121, 130, 143, 220, 242, 260, 286, 440, 484, 499, 520, 572, 605, 715, 968, 998, 1144, 1210, 1430, 1573, 1996, 2420, 2495, 2860, 3146, 3992, 4840, 4990, 5489, 5720, 6292, 6487, 7865, 9980, 10978, 12584, 12974, 15730, 19960, 21956, 25948, 27445, 31460, 32435, 43912, 51896, 54890, 60379, 62920, 64870, 71357, 109780, 120758, 129740, 142714, 219560, 241516, 259480, 285428, 301895, 356785, 483032, 570856, 603790, 713570, 784927, 1207580, 1427140, 1569854, 2415160, 2854280, 3139708, 3924635, 6279416, 7849270, 15698540, 31397080]

約数ペア:

[(1, 31397080), (2, 15698540), (4, 7849270), (5, 6279416), (8, 3924635), (10, 3139708), (11, 2854280), (13, 2415160), (20, 1569854), (22, 1427140), (26, 1207580), (40, 784927), (44, 713570), (52, 603790), (55, 570856), (65, 483032), (88, 356785), (104, 301895), (110, 285428), (121, 259480), (130, 241516), (143, 219560), (220, 142714), (242, 129740), (260, 120758), (286, 109780), (440, 71357), (484, 64870), (499, 62920), (520, 60379), (572, 54890), (605, 51896), (715, 43912), (968, 32435), (998, 31460), (1144, 27445), (1210, 25948), (1430, 21956), (1573, 19960), (1996, 15730), (2420, 12974), (2495, 12584), (2860, 10978), (3146, 9980), (3992, 7865), (4840, 6487), (4990, 6292), (5489, 5720)]