142839160

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{8731}}^1$

素因数の和:9151

約数の個数: 32

約数和(自身を含む): 322210800

約数和(自身を除く): 179371640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 8180, 8731, 16360, 17462, 34924, 43655, 69848, 87310, 174620, 349240, 3570979, 7141958, 14283916, 17854895, 28567832, 35709790, 71419580, 142839160]

約数ペア:

[(1, 142839160), (2, 71419580), (4, 35709790), (5, 28567832), (8, 17854895), (10, 14283916), (20, 7141958), (40, 3570979), (409, 349240), (818, 174620), (1636, 87310), (2045, 69848), (3272, 43655), (4090, 34924), (8180, 17462), (8731, 16360)]