9968488820

素因数分解:

$2^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{991}}^1\times {\mathrm{1091}}^1$

素因数の和:2552

約数の個数: 48

約数和(自身を含む): 21019654656

約数和(自身を除く): 11051165836

約数列:

[1, 2, 4, 5, 10, 20, 461, 922, 991, 1091, 1844, 1982, 2182, 2305, 3964, 4364, 4610, 4955, 5455, 9220, 9910, 10910, 19820, 21820, 456851, 502951, 913702, 1005902, 1081181, 1827404, 2011804, 2162362, 2284255, 2514755, 4324724, 4568510, 5029510, 5405905, 9137020, 10059020, 10811810, 21623620, 498424441, 996848882, 1993697764, 2492122205, 4984244410, 9968488820]

約数ペア:

[(1, 9968488820), (2, 4984244410), (4, 2492122205), (5, 1993697764), (10, 996848882), (20, 498424441), (461, 21623620), (922, 10811810), (991, 10059020), (1091, 9137020), (1844, 5405905), (1982, 5029510), (2182, 4568510), (2305, 4324724), (3964, 2514755), (4364, 2284255), (4610, 2162362), (4955, 2011804), (5455, 1827404), (9220, 1081181), (9910, 1005902), (10910, 913702), (19820, 502951), (21820, 456851)]