1261338478

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{155299}}^1$

素因数の和:155463

約数の個数: 16

約数和(自身を含む): 1967961600

約数和(自身を除く): 706623122

約数列:

[1, 2, 31, 62, 131, 262, 4061, 8122, 155299, 310598, 4814269, 9628538, 20344169, 40688338, 630669239, 1261338478]

約数ペア:

[(1, 1261338478), (2, 630669239), (31, 40688338), (62, 20344169), (131, 9628538), (262, 4814269), (4061, 310598), (8122, 155299)]