2021699525

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{359}}^1\times {\mathrm{2531}}^1$

素因数の和:2989

約数の個数: 24

約数和(自身を含む): 2543140800

約数和(自身を除く): 521441275

約数列:

[1, 5, 25, 89, 359, 445, 1795, 2225, 2531, 8975, 12655, 31951, 63275, 159755, 225259, 798775, 908629, 1126295, 4543145, 5631475, 22715725, 80867981, 404339905, 2021699525]

約数ペア:

[(1, 2021699525), (5, 404339905), (25, 80867981), (89, 22715725), (359, 5631475), (445, 4543145), (1795, 1126295), (2225, 908629), (2531, 798775), (8975, 225259), (12655, 159755), (31951, 63275)]