20961740540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2767}}^1\times {\mathrm{29137}}^1$

素因数の和:31926

約数の個数: 48

約数和(自身を含む): 47424542592

約数和(自身を除く): 26462802052

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2767, 5534, 11068, 13835, 27670, 29137, 35971, 55340, 58274, 71942, 116548, 143884, 145685, 179855, 291370, 359710, 378781, 582740, 719420, 757562, 1515124, 1893905, 3787810, 7575620, 80622079, 161244158, 322488316, 403110395, 806220790, 1048087027, 1612441580, 2096174054, 4192348108, 5240435135, 10480870270, 20961740540]

約数ペア:

[(1, 20961740540), (2, 10480870270), (4, 5240435135), (5, 4192348108), (10, 2096174054), (13, 1612441580), (20, 1048087027), (26, 806220790), (52, 403110395), (65, 322488316), (130, 161244158), (260, 80622079), (2767, 7575620), (5534, 3787810), (11068, 1893905), (13835, 1515124), (27670, 757562), (29137, 719420), (35971, 582740), (55340, 378781), (58274, 359710), (71942, 291370), (116548, 179855), (143884, 145685)]