17979661640

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2598217}}^1$

素因数の和:2598401

約数の個数: 32

約数和(自身を含む): 40688093880

約数和(自身を除く): 22708432240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 2598217, 5196434, 10392868, 12991085, 20785736, 25982170, 51964340, 103928680, 449491541, 898983082, 1797966164, 2247457705, 3595932328, 4494915410, 8989830820, 17979661640]

約数ペア:

[(1, 17979661640), (2, 8989830820), (4, 4494915410), (5, 3595932328), (8, 2247457705), (10, 1797966164), (20, 898983082), (40, 449491541), (173, 103928680), (346, 51964340), (692, 25982170), (865, 20785736), (1384, 12991085), (1730, 10392868), (3460, 5196434), (6920, 2598217)]