80138890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{733}}^1$

素因数の和:811

約数の個数: 48

約数和(自身を含む): 161107128

約数和(自身を除く): 80968238

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 733, 754, 841, 1466, 1682, 1885, 3665, 3770, 4205, 7330, 8410, 9529, 10933, 19058, 21257, 21866, 42514, 47645, 54665, 95290, 106285, 109330, 212570, 276341, 552682, 616453, 1232906, 1381705, 2763410, 3082265, 6164530, 8013889, 16027778, 40069445, 80138890]

約数ペア:

[(1, 80138890), (2, 40069445), (5, 16027778), (10, 8013889), (13, 6164530), (26, 3082265), (29, 2763410), (58, 1381705), (65, 1232906), (130, 616453), (145, 552682), (290, 276341), (377, 212570), (733, 109330), (754, 106285), (841, 95290), (1466, 54665), (1682, 47645), (1885, 42514), (3665, 21866), (3770, 21257), (4205, 19058), (7330, 10933), (8410, 9529)]