202010620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{20323}}^1$

素因数の和:20410

約数の個数: 48

約数和(自身を含む): 491678208

約数和(自身を除く): 289667588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 20323, 40646, 81292, 101615, 142261, 203230, 284522, 406460, 569044, 711305, 1422610, 1442933, 2845220, 2885866, 5771732, 7214665, 10100531, 14429330, 20201062, 28858660, 40402124, 50502655, 101005310, 202010620]

約数ペア:

[(1, 202010620), (2, 101005310), (4, 50502655), (5, 40402124), (7, 28858660), (10, 20201062), (14, 14429330), (20, 10100531), (28, 7214665), (35, 5771732), (70, 2885866), (71, 2845220), (140, 1442933), (142, 1422610), (284, 711305), (355, 569044), (497, 406460), (710, 284522), (994, 203230), (1420, 142261), (1988, 101615), (2485, 81292), (4970, 40646), (9940, 20323)]