31550625

素因数分解:

$3^2\times 5^4\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:176

約数の個数: 60

約数和(自身を含む): 58481280

約数和(自身を除く): 26930655

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 79, 125, 213, 225, 237, 355, 375, 395, 625, 639, 711, 1065, 1125, 1185, 1775, 1875, 1975, 3195, 3555, 5325, 5609, 5625, 5925, 8875, 9875, 15975, 16827, 17775, 26625, 28045, 29625, 44375, 49375, 50481, 79875, 84135, 88875, 133125, 140225, 148125, 252405, 399375, 420675, 444375, 701125, 1262025, 2103375, 3505625, 6310125, 10516875, 31550625]

約数ペア:

[(1, 31550625), (3, 10516875), (5, 6310125), (9, 3505625), (15, 2103375), (25, 1262025), (45, 701125), (71, 444375), (75, 420675), (79, 399375), (125, 252405), (213, 148125), (225, 140225), (237, 133125), (355, 88875), (375, 84135), (395, 79875), (625, 50481), (639, 49375), (711, 44375), (1065, 29625), (1125, 28045), (1185, 26625), (1775, 17775), (1875, 16827), (1975, 15975), (3195, 9875), (3555, 8875), (5325, 5925), (5609, 5625)]