15705101980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1\times {\mathrm{31177}}^1$

素因数の和:31558

約数の個数: 48

約数和(自身を含む): 33470206560

約数和(自身を除く): 17765104580

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 283, 356, 445, 566, 890, 1132, 1415, 1780, 2830, 5660, 25187, 31177, 50374, 62354, 100748, 124708, 125935, 155885, 251870, 311770, 503740, 623540, 2774753, 5549506, 8823091, 11099012, 13873765, 17646182, 27747530, 35292364, 44115455, 55495060, 88230910, 176461820, 785255099, 1570510198, 3141020396, 3926275495, 7852550990, 15705101980]

約数ペア:

[(1, 15705101980), (2, 7852550990), (4, 3926275495), (5, 3141020396), (10, 1570510198), (20, 785255099), (89, 176461820), (178, 88230910), (283, 55495060), (356, 44115455), (445, 35292364), (566, 27747530), (890, 17646182), (1132, 13873765), (1415, 11099012), (1780, 8823091), (2830, 5549506), (5660, 2774753), (25187, 623540), (31177, 503740), (50374, 311770), (62354, 251870), (100748, 155885), (124708, 125935)]