31121325

素因数分解:

$3^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{881}}^1$

素因数の和:1054

約数の個数: 36

約数和(自身を含む): 56160468

約数和(自身を除く): 25039143

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 157, 225, 471, 785, 881, 1413, 2355, 2643, 3925, 4405, 7065, 7929, 11775, 13215, 22025, 35325, 39645, 66075, 138317, 198225, 414951, 691585, 1244853, 2074755, 3457925, 6224265, 10373775, 31121325]

約数ペア:

[(1, 31121325), (3, 10373775), (5, 6224265), (9, 3457925), (15, 2074755), (25, 1244853), (45, 691585), (75, 414951), (157, 198225), (225, 138317), (471, 66075), (785, 39645), (881, 35325), (1413, 22025), (2355, 13215), (2643, 11775), (3925, 7929), (4405, 7065)]