386574820

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{123113}}^1$

素因数の和:123279

約数の個数: 24

約数和(自身を含む): 816984504

約数和(自身を除く): 430409684

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 123113, 246226, 492452, 615565, 1231130, 2462260, 19328741, 38657482, 77314964, 96643705, 193287410, 386574820]

約数ペア:

[(1, 386574820), (2, 193287410), (4, 96643705), (5, 77314964), (10, 38657482), (20, 19328741), (157, 2462260), (314, 1231130), (628, 615565), (785, 492452), (1570, 246226), (3140, 123113)]