128170120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7951}}^1$

素因数の和:8006

約数の個数: 64

約数和(自身を含む): 320624640

約数和(自身を除く): 192454520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 7951, 8060, 15902, 16120, 31804, 39755, 63608, 79510, 103363, 159020, 206726, 246481, 318040, 413452, 492962, 516815, 826904, 985924, 1033630, 1232405, 1971848, 2067260, 2464810, 3204253, 4134520, 4929620, 6408506, 9859240, 12817012, 16021265, 25634024, 32042530, 64085060, 128170120]

約数ペア:

[(1, 128170120), (2, 64085060), (4, 32042530), (5, 25634024), (8, 16021265), (10, 12817012), (13, 9859240), (20, 6408506), (26, 4929620), (31, 4134520), (40, 3204253), (52, 2464810), (62, 2067260), (65, 1971848), (104, 1232405), (124, 1033630), (130, 985924), (155, 826904), (248, 516815), (260, 492962), (310, 413452), (403, 318040), (520, 246481), (620, 206726), (806, 159020), (1240, 103363), (1612, 79510), (2015, 63608), (3224, 39755), (4030, 31804), (7951, 16120), (8060, 15902)]