205323740

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1\times {\mathrm{691}}^1$

素因数の和:962

約数の個数: 48

約数和(自身を含む): 439447680

約数和(自身を除く): 234123940

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 179, 332, 358, 415, 691, 716, 830, 895, 1382, 1660, 1790, 2764, 3455, 3580, 6910, 13820, 14857, 29714, 57353, 59428, 74285, 114706, 123689, 148570, 229412, 247378, 286765, 297140, 494756, 573530, 618445, 1147060, 1236890, 2473780, 10266187, 20532374, 41064748, 51330935, 102661870, 205323740]

約数ペア:

[(1, 205323740), (2, 102661870), (4, 51330935), (5, 41064748), (10, 20532374), (20, 10266187), (83, 2473780), (166, 1236890), (179, 1147060), (332, 618445), (358, 573530), (415, 494756), (691, 297140), (716, 286765), (830, 247378), (895, 229412), (1382, 148570), (1660, 123689), (1790, 114706), (2764, 74285), (3455, 59428), (3580, 57353), (6910, 29714), (13820, 14857)]