38718940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1087}}^1$

素因数の和:1246

約数の個数: 48

約数和(自身を含む): 88284672

約数和(自身を除く): 49565732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 260, 274, 548, 685, 1087, 1370, 1781, 2174, 2740, 3562, 4348, 5435, 7124, 8905, 10870, 14131, 17810, 21740, 28262, 35620, 56524, 70655, 141310, 148919, 282620, 297838, 595676, 744595, 1489190, 1935947, 2978380, 3871894, 7743788, 9679735, 19359470, 38718940]

約数ペア:

[(1, 38718940), (2, 19359470), (4, 9679735), (5, 7743788), (10, 3871894), (13, 2978380), (20, 1935947), (26, 1489190), (52, 744595), (65, 595676), (130, 297838), (137, 282620), (260, 148919), (274, 141310), (548, 70655), (685, 56524), (1087, 35620), (1370, 28262), (1781, 21740), (2174, 17810), (2740, 14131), (3562, 10870), (4348, 8905), (5435, 7124)]