139906960

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{16979}}^1$

素因数の和:17095

約数の個数: 40

約数和(自身を含む): 328461120

約数和(自身を除く): 188554160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 16979, 33958, 67916, 84895, 135832, 169790, 271664, 339580, 679160, 1358320, 1748837, 3497674, 6995348, 8744185, 13990696, 17488370, 27981392, 34976740, 69953480, 139906960]

約数ペア:

[(1, 139906960), (2, 69953480), (4, 34976740), (5, 27981392), (8, 17488370), (10, 13990696), (16, 8744185), (20, 6995348), (40, 3497674), (80, 1748837), (103, 1358320), (206, 679160), (412, 339580), (515, 271664), (824, 169790), (1030, 135832), (1648, 84895), (2060, 67916), (4120, 33958), (8240, 16979)]