19717100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{523}}^1$

素因数の和:579

約数の個数: 72

約数和(自身を含む): 47757360

約数和(自身を除く): 28040260

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 29, 50, 52, 58, 65, 100, 116, 130, 145, 260, 290, 325, 377, 523, 580, 650, 725, 754, 1046, 1300, 1450, 1508, 1885, 2092, 2615, 2900, 3770, 5230, 6799, 7540, 9425, 10460, 13075, 13598, 15167, 18850, 26150, 27196, 30334, 33995, 37700, 52300, 60668, 67990, 75835, 135980, 151670, 169975, 197171, 303340, 339950, 379175, 394342, 679900, 758350, 788684, 985855, 1516700, 1971710, 3943420, 4929275, 9858550, 19717100]

約数ペア:

[(1, 19717100), (2, 9858550), (4, 4929275), (5, 3943420), (10, 1971710), (13, 1516700), (20, 985855), (25, 788684), (26, 758350), (29, 679900), (50, 394342), (52, 379175), (58, 339950), (65, 303340), (100, 197171), (116, 169975), (130, 151670), (145, 135980), (260, 75835), (290, 67990), (325, 60668), (377, 52300), (523, 37700), (580, 33995), (650, 30334), (725, 27196), (754, 26150), (1046, 18850), (1300, 15167), (1450, 13598), (1508, 13075), (1885, 10460), (2092, 9425), (2615, 7540), (2900, 6799), (3770, 5230)]