320199080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{470881}}^1$

素因数の和:470909

約数の個数: 32

約数和(自身を含む): 762828840

約数和(自身を除く): 442629760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 470881, 941762, 1883524, 2354405, 3767048, 4708810, 8004977, 9417620, 16009954, 18835240, 32019908, 40024885, 64039816, 80049770, 160099540, 320199080]

約数ペア:

[(1, 320199080), (2, 160099540), (4, 80049770), (5, 64039816), (8, 40024885), (10, 32019908), (17, 18835240), (20, 16009954), (34, 9417620), (40, 8004977), (68, 4708810), (85, 3767048), (136, 2354405), (170, 1883524), (340, 941762), (680, 470881)]