129311920

素因数分解:

$2^4\times 5^1\times {\mathrm{863}}^1\times {\mathrm{1873}}^1$

素因数の和:2749

約数の個数: 40

約数和(自身を含む): 301159296

約数和(自身を除く): 171847376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 863, 1726, 1873, 3452, 3746, 4315, 6904, 7492, 8630, 9365, 13808, 14984, 17260, 18730, 29968, 34520, 37460, 69040, 74920, 149840, 1616399, 3232798, 6465596, 8081995, 12931192, 16163990, 25862384, 32327980, 64655960, 129311920]

約数ペア:

[(1, 129311920), (2, 64655960), (4, 32327980), (5, 25862384), (8, 16163990), (10, 12931192), (16, 8081995), (20, 6465596), (40, 3232798), (80, 1616399), (863, 149840), (1726, 74920), (1873, 69040), (3452, 37460), (3746, 34520), (4315, 29968), (6904, 18730), (7492, 17260), (8630, 14984), (9365, 13808)]