820121230

素因数分解:

$2^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{557}}^1\times {\mathrm{1303}}^1$

素因数の和:1980

約数の個数: 32

約数和(自身を含む): 1493100864

約数和(自身を除く): 672979634

約数列:

[1, 2, 5, 10, 113, 226, 557, 565, 1114, 1130, 1303, 2606, 2785, 5570, 6515, 13030, 62941, 125882, 147239, 294478, 314705, 629410, 725771, 736195, 1451542, 1472390, 3628855, 7257710, 82012123, 164024246, 410060615, 820121230]

約数ペア:

[(1, 820121230), (2, 410060615), (5, 164024246), (10, 82012123), (113, 7257710), (226, 3628855), (557, 1472390), (565, 1451542), (1114, 736195), (1130, 725771), (1303, 629410), (2606, 314705), (2785, 294478), (5570, 147239), (6515, 125882), (13030, 62941)]