20020725

素因数分解:

$3^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{881}}^1$

素因数の和:998

約数の個数: 36

約数和(自身を含む): 36255492

約数和(自身を除く): 16234767

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 101, 225, 303, 505, 881, 909, 1515, 2525, 2643, 4405, 4545, 7575, 7929, 13215, 22025, 22725, 39645, 66075, 88981, 198225, 266943, 444905, 800829, 1334715, 2224525, 4004145, 6673575, 20020725]

約数ペア:

[(1, 20020725), (3, 6673575), (5, 4004145), (9, 2224525), (15, 1334715), (25, 800829), (45, 444905), (75, 266943), (101, 198225), (225, 88981), (303, 66075), (505, 39645), (881, 22725), (909, 22025), (1515, 13215), (2525, 7929), (2643, 7575), (4405, 4545)]