648843780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{831851}}^1$

素因数の和:831876

約数の個数: 48

約数和(自身を含む): 1956515904

約数和(自身を除く): 1307672124

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, 831851, 1663702, 2495553, 3327404, 4159255, 4991106, 8318510, 9982212, 10814063, 12477765, 16637020, 21628126, 24955530, 32442189, 43256252, 49911060, 54070315, 64884378, 108140630, 129768756, 162210945, 216281260, 324421890, 648843780]

約数ペア:

[(1, 648843780), (2, 324421890), (3, 216281260), (4, 162210945), (5, 129768756), (6, 108140630), (10, 64884378), (12, 54070315), (13, 49911060), (15, 43256252), (20, 32442189), (26, 24955530), (30, 21628126), (39, 16637020), (52, 12477765), (60, 10814063), (65, 9982212), (78, 8318510), (130, 4991106), (156, 4159255), (195, 3327404), (260, 2495553), (390, 1663702), (780, 831851)]