387645890

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1\times {\mathrm{2711}}^1$

素因数の和:2978

約数の個数: 32

約数和(自身を含む): 710760960

約数和(自身を除く): 323115070

約数列:

[1, 2, 5, 10, 79, 158, 181, 362, 395, 790, 905, 1810, 2711, 5422, 13555, 14299, 27110, 28598, 71495, 142990, 214169, 428338, 490691, 981382, 1070845, 2141690, 2453455, 4906910, 38764589, 77529178, 193822945, 387645890]

約数ペア:

[(1, 387645890), (2, 193822945), (5, 77529178), (10, 38764589), (79, 4906910), (158, 2453455), (181, 2141690), (362, 1070845), (395, 981382), (790, 490691), (905, 428338), (1810, 214169), (2711, 142990), (5422, 71495), (13555, 28598), (14299, 27110)]