89385640

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{12917}}^1$

素因数の和:13101

約数の個数: 32

約数和(自身を含む): 202295880

約数和(自身を除く): 112910240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 12917, 25834, 51668, 64585, 103336, 129170, 258340, 516680, 2234641, 4469282, 8938564, 11173205, 17877128, 22346410, 44692820, 89385640]

約数ペア:

[(1, 89385640), (2, 44692820), (4, 22346410), (5, 17877128), (8, 11173205), (10, 8938564), (20, 4469282), (40, 2234641), (173, 516680), (346, 258340), (692, 129170), (865, 103336), (1384, 64585), (1730, 51668), (3460, 25834), (6920, 12917)]