31071820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{941}}^1$

素因数の和:1090

約数の個数: 48

約数和(自身を含む): 70898688

約数和(自身を除く): 39826868

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 941, 1270, 1651, 1882, 2540, 3302, 3764, 4705, 6604, 8255, 9410, 12233, 16510, 18820, 24466, 33020, 48932, 61165, 119507, 122330, 239014, 244660, 478028, 597535, 1195070, 1553591, 2390140, 3107182, 6214364, 7767955, 15535910, 31071820]

約数ペア:

[(1, 31071820), (2, 15535910), (4, 7767955), (5, 6214364), (10, 3107182), (13, 2390140), (20, 1553591), (26, 1195070), (52, 597535), (65, 478028), (127, 244660), (130, 239014), (254, 122330), (260, 119507), (508, 61165), (635, 48932), (941, 33020), (1270, 24466), (1651, 18820), (1882, 16510), (2540, 12233), (3302, 9410), (3764, 8255), (4705, 6604)]