155784820

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{49613}}^1$

素因数の和:49779

約数の個数: 24

約数和(自身を含む): 329238504

約数和(自身を除く): 173453684

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 49613, 99226, 198452, 248065, 496130, 992260, 7789241, 15578482, 31156964, 38946205, 77892410, 155784820]

約数ペア:

[(1, 155784820), (2, 77892410), (4, 38946205), (5, 31156964), (10, 15578482), (20, 7789241), (157, 992260), (314, 496130), (628, 248065), (785, 198452), (1570, 99226), (3140, 49613)]