31913960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4721}}^1$

素因数の和:4758

約数の個数: 48

約数和(自身を含む): 77771340

約数和(自身を除く): 45857380

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 4721, 6760, 9442, 18884, 23605, 37768, 47210, 61373, 94420, 122746, 188840, 245492, 306865, 490984, 613730, 797849, 1227460, 1595698, 2454920, 3191396, 3989245, 6382792, 7978490, 15956980, 31913960]

約数ペア:

[(1, 31913960), (2, 15956980), (4, 7978490), (5, 6382792), (8, 3989245), (10, 3191396), (13, 2454920), (20, 1595698), (26, 1227460), (40, 797849), (52, 613730), (65, 490984), (104, 306865), (130, 245492), (169, 188840), (260, 122746), (338, 94420), (520, 61373), (676, 47210), (845, 37768), (1352, 23605), (1690, 18884), (3380, 9442), (4721, 6760)]