20505430

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1423}}^1$

素因数の和:1572

約数の個数: 32

約数和(自身を含む): 40601088

約数和(自身を除く): 20095658

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 131, 262, 655, 1310, 1423, 1441, 2846, 2882, 7115, 7205, 14230, 14410, 15653, 31306, 78265, 156530, 186413, 372826, 932065, 1864130, 2050543, 4101086, 10252715, 20505430]

約数ペア:

[(1, 20505430), (2, 10252715), (5, 4101086), (10, 2050543), (11, 1864130), (22, 932065), (55, 372826), (110, 186413), (131, 156530), (262, 78265), (655, 31306), (1310, 15653), (1423, 14410), (1441, 14230), (2846, 7205), (2882, 7115)]