131964625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{281}}^1$

素因数の和:343

約数の個数: 48

約数和(自身を含む): 189077616

約数和(自身を除く): 57112991

約数列:

[1, 5, 13, 17, 25, 65, 85, 125, 221, 281, 289, 325, 425, 1105, 1405, 1445, 1625, 2125, 3653, 3757, 4777, 5525, 7025, 7225, 18265, 18785, 23885, 27625, 35125, 36125, 62101, 81209, 91325, 93925, 119425, 310505, 406045, 456625, 469625, 597125, 1055717, 1552525, 2030225, 5278585, 7762625, 10151125, 26392925, 131964625]

約数ペア:

[(1, 131964625), (5, 26392925), (13, 10151125), (17, 7762625), (25, 5278585), (65, 2030225), (85, 1552525), (125, 1055717), (221, 597125), (281, 469625), (289, 456625), (325, 406045), (425, 310505), (1105, 119425), (1405, 93925), (1445, 91325), (1625, 81209), (2125, 62101), (3653, 36125), (3757, 35125), (4777, 27625), (5525, 23885), (7025, 18785), (7225, 18265)]