221457025

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{7723}}^1$

素因数の和:7801

約数の個数: 24

約数和(自身を含む): 291163904

約数和(自身を除く): 69706879

約数列:

[1, 5, 25, 31, 37, 155, 185, 775, 925, 1147, 5735, 7723, 28675, 38615, 193075, 239413, 285751, 1197065, 1428755, 5985325, 7143775, 8858281, 44291405, 221457025]

約数ペア:

[(1, 221457025), (5, 44291405), (25, 8858281), (31, 7143775), (37, 5985325), (155, 1428755), (185, 1197065), (775, 285751), (925, 239413), (1147, 193075), (5735, 38615), (7723, 28675)]