515173640

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{20411}}^1$

素因数の和:21053

約数の個数: 32

約数和(自身を含む): 1161034560

約数和(自身を除く): 645860920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 2524, 3155, 5048, 6310, 12620, 20411, 25240, 40822, 81644, 102055, 163288, 204110, 408220, 816440, 12879341, 25758682, 51517364, 64396705, 103034728, 128793410, 257586820, 515173640]

約数ペア:

[(1, 515173640), (2, 257586820), (4, 128793410), (5, 103034728), (8, 64396705), (10, 51517364), (20, 25758682), (40, 12879341), (631, 816440), (1262, 408220), (2524, 204110), (3155, 163288), (5048, 102055), (6310, 81644), (12620, 40822), (20411, 25240)]