289778690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{21481}}^1$

素因数の和:21578

約数の個数: 32

約数和(自身を含む): 556813440

約数和(自身を除く): 267034750

約数列:

[1, 2, 5, 10, 19, 38, 71, 95, 142, 190, 355, 710, 1349, 2698, 6745, 13490, 21481, 42962, 107405, 214810, 408139, 816278, 1525151, 2040695, 3050302, 4081390, 7625755, 15251510, 28977869, 57955738, 144889345, 289778690]

約数ペア:

[(1, 289778690), (2, 144889345), (5, 57955738), (10, 28977869), (19, 15251510), (38, 7625755), (71, 4081390), (95, 3050302), (142, 2040695), (190, 1525151), (355, 816278), (710, 408139), (1349, 214810), (2698, 107405), (6745, 42962), (13490, 21481)]