7912840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15217}}^1$

素因数の和:15241

約数の個数: 32

約数和(自身を含む): 19174680

約数和(自身を除く): 11261840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 15217, 30434, 60868, 76085, 121736, 152170, 197821, 304340, 395642, 608680, 791284, 989105, 1582568, 1978210, 3956420, 7912840]

約数ペア:

[(1, 7912840), (2, 3956420), (4, 1978210), (5, 1582568), (8, 989105), (10, 791284), (13, 608680), (20, 395642), (26, 304340), (40, 197821), (52, 152170), (65, 121736), (104, 76085), (130, 60868), (260, 30434), (520, 15217)]