676831420

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1\times {\mathrm{1087}}^1$

素因数の和:1450

約数の個数: 48

約数和(自身を含む): 1438875648

約数和(自身を除く): 762044228

約数列:

[1, 2, 4, 5, 10, 20, 163, 191, 326, 382, 652, 764, 815, 955, 1087, 1630, 1910, 2174, 3260, 3820, 4348, 5435, 10870, 21740, 31133, 62266, 124532, 155665, 177181, 207617, 311330, 354362, 415234, 622660, 708724, 830468, 885905, 1038085, 1771810, 2076170, 3543620, 4152340, 33841571, 67683142, 135366284, 169207855, 338415710, 676831420]

約数ペア:

[(1, 676831420), (2, 338415710), (4, 169207855), (5, 135366284), (10, 67683142), (20, 33841571), (163, 4152340), (191, 3543620), (326, 2076170), (382, 1771810), (652, 1038085), (764, 885905), (815, 830468), (955, 708724), (1087, 622660), (1630, 415234), (1910, 354362), (2174, 311330), (3260, 207617), (3820, 177181), (4348, 155665), (5435, 124532), (10870, 62266), (21740, 31133)]