39988007880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{1997}}^1\times {\mathrm{166867}}^1$

素因数の和:168878

約数の個数: 64

約数和(自身を含む): 120024815040

約数和(自身を除く): 80036807160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 1997, 3994, 5991, 7988, 9985, 11982, 15976, 19970, 23964, 29955, 39940, 47928, 59910, 79880, 119820, 166867, 239640, 333734, 500601, 667468, 834335, 1001202, 1334936, 1668670, 2002404, 2503005, 3337340, 4004808, 5006010, 6674680, 10012020, 20024040, 333233399, 666466798, 999700197, 1332933596, 1666166995, 1999400394, 2665867192, 3332333990, 3998800788, 4998500985, 6664667980, 7997601576, 9997001970, 13329335960, 19994003940, 39988007880]

約数ペア:

[(1, 39988007880), (2, 19994003940), (3, 13329335960), (4, 9997001970), (5, 7997601576), (6, 6664667980), (8, 4998500985), (10, 3998800788), (12, 3332333990), (15, 2665867192), (20, 1999400394), (24, 1666166995), (30, 1332933596), (40, 999700197), (60, 666466798), (120, 333233399), (1997, 20024040), (3994, 10012020), (5991, 6674680), (7988, 5006010), (9985, 4004808), (11982, 3337340), (15976, 2503005), (19970, 2002404), (23964, 1668670), (29955, 1334936), (39940, 1001202), (47928, 834335), (59910, 667468), (79880, 500601), (119820, 333734), (166867, 239640)]