31163340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39953}}^1$

素因数の和:39978

約数の個数: 48

約数和(自身を含む): 93971808

約数和(自身を除く): 62808468

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, 39953, 79906, 119859, 159812, 199765, 239718, 399530, 479436, 519389, 599295, 799060, 1038778, 1198590, 1558167, 2077556, 2397180, 2596945, 3116334, 5193890, 6232668, 7790835, 10387780, 15581670, 31163340]

約数ペア:

[(1, 31163340), (2, 15581670), (3, 10387780), (4, 7790835), (5, 6232668), (6, 5193890), (10, 3116334), (12, 2596945), (13, 2397180), (15, 2077556), (20, 1558167), (26, 1198590), (30, 1038778), (39, 799060), (52, 599295), (60, 519389), (65, 479436), (78, 399530), (130, 239718), (156, 199765), (195, 159812), (260, 119859), (390, 79906), (780, 39953)]