139275640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{71059}}^1$

素因数の和:71084

約数の個数: 48

約数和(自身を含む): 364537800

約数和(自身を除く): 225262160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 71059, 142118, 284236, 355295, 497413, 568472, 710590, 994826, 1421180, 1989652, 2487065, 2842360, 3481891, 3979304, 4974130, 6963782, 9948260, 13927564, 17409455, 19896520, 27855128, 34818910, 69637820, 139275640]

約数ペア:

[(1, 139275640), (2, 69637820), (4, 34818910), (5, 27855128), (7, 19896520), (8, 17409455), (10, 13927564), (14, 9948260), (20, 6963782), (28, 4974130), (35, 3979304), (40, 3481891), (49, 2842360), (56, 2487065), (70, 1989652), (98, 1421180), (140, 994826), (196, 710590), (245, 568472), (280, 497413), (392, 355295), (490, 284236), (980, 142118), (1960, 71059)]