78889820

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{521}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 169954848

約数和(自身を除く): 91065028

約数列:

[1, 2, 4, 5, 10, 20, 67, 113, 134, 226, 268, 335, 452, 521, 565, 670, 1042, 1130, 1340, 2084, 2260, 2605, 5210, 7571, 10420, 15142, 30284, 34907, 37855, 58873, 69814, 75710, 117746, 139628, 151420, 174535, 235492, 294365, 349070, 588730, 698140, 1177460, 3944491, 7888982, 15777964, 19722455, 39444910, 78889820]

約数ペア:

[(1, 78889820), (2, 39444910), (4, 19722455), (5, 15777964), (10, 7888982), (20, 3944491), (67, 1177460), (113, 698140), (134, 588730), (226, 349070), (268, 294365), (335, 235492), (452, 174535), (521, 151420), (565, 139628), (670, 117746), (1042, 75710), (1130, 69814), (1340, 58873), (2084, 37855), (2260, 34907), (2605, 30284), (5210, 15142), (7571, 10420)]