20509992

素因数分解:

$2^3\times 3^2\times {\mathrm{127}}^1\times {\mathrm{2243}}^1$

素因数の和:2382

約数の個数: 48

約数和(自身を含む): 56010240

約数和(自身を除く): 35500248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 127, 254, 381, 508, 762, 1016, 1143, 1524, 2243, 2286, 3048, 4486, 4572, 6729, 8972, 9144, 13458, 17944, 20187, 26916, 40374, 53832, 80748, 161496, 284861, 569722, 854583, 1139444, 1709166, 2278888, 2563749, 3418332, 5127498, 6836664, 10254996, 20509992]

約数ペア:

[(1, 20509992), (2, 10254996), (3, 6836664), (4, 5127498), (6, 3418332), (8, 2563749), (9, 2278888), (12, 1709166), (18, 1139444), (24, 854583), (36, 569722), (72, 284861), (127, 161496), (254, 80748), (381, 53832), (508, 40374), (762, 26916), (1016, 20187), (1143, 17944), (1524, 13458), (2243, 9144), (2286, 8972), (3048, 6729), (4486, 4572)]