7957820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 18213888

約数和(自身を除く): 10256068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 241, 254, 260, 482, 508, 635, 964, 1205, 1270, 1651, 2410, 2540, 3133, 3302, 4820, 6266, 6604, 8255, 12532, 15665, 16510, 30607, 31330, 33020, 61214, 62660, 122428, 153035, 306070, 397891, 612140, 795782, 1591564, 1989455, 3978910, 7957820]

約数ペア:

[(1, 7957820), (2, 3978910), (4, 1989455), (5, 1591564), (10, 795782), (13, 612140), (20, 397891), (26, 306070), (52, 153035), (65, 122428), (127, 62660), (130, 61214), (241, 33020), (254, 31330), (260, 30607), (482, 16510), (508, 15665), (635, 12532), (964, 8255), (1205, 6604), (1270, 6266), (1651, 4820), (2410, 3302), (2540, 3133)]