31704920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3209}}^1$

素因数の和:3252

約数の個数: 64

約数和(自身を含む): 80892000

約数和(自身を除く): 49187080

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 3209, 4940, 6418, 9880, 12836, 16045, 25672, 32090, 41717, 60971, 64180, 83434, 121942, 128360, 166868, 208585, 243884, 304855, 333736, 417170, 487768, 609710, 792623, 834340, 1219420, 1585246, 1668680, 2438840, 3170492, 3963115, 6340984, 7926230, 15852460, 31704920]

約数ペア:

[(1, 31704920), (2, 15852460), (4, 7926230), (5, 6340984), (8, 3963115), (10, 3170492), (13, 2438840), (19, 1668680), (20, 1585246), (26, 1219420), (38, 834340), (40, 792623), (52, 609710), (65, 487768), (76, 417170), (95, 333736), (104, 304855), (130, 243884), (152, 208585), (190, 166868), (247, 128360), (260, 121942), (380, 83434), (494, 64180), (520, 60971), (760, 41717), (988, 32090), (1235, 25672), (1976, 16045), (2470, 12836), (3209, 9880), (4940, 6418)]