311032020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{398759}}^1$

素因数の和:398784

約数の個数: 48

約数和(自身を含む): 937883520

約数和(自身を除く): 626851500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 398759, 797518, 1196277, 1595036, 1993795, 2392554, 3987590, 4785108, 5183867, 5981385, 7975180, 10367734, 11962770, 15551601, 20735468, 23925540, 25919335, 31103202, 51838670, 62206404, 77758005, 103677340, 155516010, 311032020]

約数ペア:

[(1, 311032020), (2, 155516010), (3, 103677340), (4, 77758005), (5, 62206404), (6, 51838670), (10, 31103202), (12, 25919335), (13, 23925540), (15, 20735468), (20, 15551601), (26, 11962770), (30, 10367734), (39, 7975180), (52, 5981385), (60, 5183867), (65, 4785108), (78, 3987590), (130, 2392554), (156, 1993795), (195, 1595036), (260, 1196277), (390, 797518), (780, 398759)]