1761627620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{21851}}^1$

素因数の和:22028

約数の個数: 48

約数和(自身を含む): 3854692800

約数和(自身を除く): 2093065180

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 139, 145, 278, 290, 556, 580, 695, 1390, 2780, 4031, 8062, 16124, 20155, 21851, 40310, 43702, 80620, 87404, 109255, 218510, 437020, 633679, 1267358, 2534716, 3037289, 3168395, 6074578, 6336790, 12149156, 12673580, 15186445, 30372890, 60745780, 88081381, 176162762, 352325524, 440406905, 880813810, 1761627620]

約数ペア:

[(1, 1761627620), (2, 880813810), (4, 440406905), (5, 352325524), (10, 176162762), (20, 88081381), (29, 60745780), (58, 30372890), (116, 15186445), (139, 12673580), (145, 12149156), (278, 6336790), (290, 6074578), (556, 3168395), (580, 3037289), (695, 2534716), (1390, 1267358), (2780, 633679), (4031, 437020), (8062, 218510), (16124, 109255), (20155, 87404), (21851, 80620), (40310, 43702)]