255723780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{327851}}^1$

素因数の和:327876

約数の個数: 48

約数和(自身を含む): 771107904

約数和(自身を除く): 515384124

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, 327851, 655702, 983553, 1311404, 1639255, 1967106, 3278510, 3934212, 4262063, 4917765, 6557020, 8524126, 9835530, 12786189, 17048252, 19671060, 21310315, 25572378, 42620630, 51144756, 63930945, 85241260, 127861890, 255723780]

約数ペア:

[(1, 255723780), (2, 127861890), (3, 85241260), (4, 63930945), (5, 51144756), (6, 42620630), (10, 25572378), (12, 21310315), (13, 19671060), (15, 17048252), (20, 12786189), (26, 9835530), (30, 8524126), (39, 6557020), (52, 4917765), (60, 4262063), (65, 3934212), (78, 3278510), (130, 1967106), (156, 1639255), (195, 1311404), (260, 983553), (390, 655702), (780, 327851)]