64423125

素因数分解:

$3^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{881}}^1$

素因数の和:920

約数の個数: 60

約数和(自身を含む): 125369244

約数和(自身を除く): 60946119

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 125, 195, 225, 325, 375, 585, 625, 881, 975, 1125, 1625, 1875, 2643, 2925, 4405, 4875, 5625, 7929, 8125, 11453, 13215, 14625, 22025, 24375, 34359, 39645, 57265, 66075, 73125, 103077, 110125, 171795, 198225, 286325, 330375, 515385, 550625, 858975, 991125, 1431625, 1651875, 2576925, 4294875, 4955625, 7158125, 12884625, 21474375, 64423125]

約数ペア:

[(1, 64423125), (3, 21474375), (5, 12884625), (9, 7158125), (13, 4955625), (15, 4294875), (25, 2576925), (39, 1651875), (45, 1431625), (65, 991125), (75, 858975), (117, 550625), (125, 515385), (195, 330375), (225, 286325), (325, 198225), (375, 171795), (585, 110125), (625, 103077), (881, 73125), (975, 66075), (1125, 57265), (1625, 39645), (1875, 34359), (2643, 24375), (2925, 22025), (4405, 14625), (4875, 13215), (5625, 11453), (7929, 8125)]