20100328

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{593}}^1$

素因数の和:841

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19816472

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 223, 446, 593, 892, 1186, 1784, 2372, 4237, 4744, 8474, 11267, 16948, 22534, 33896, 45068, 90136, 132239, 264478, 528956, 1057912, 2512541, 5025082, 10050164, 20100328]

約数ペア:

[(1, 20100328), (2, 10050164), (4, 5025082), (8, 2512541), (19, 1057912), (38, 528956), (76, 264478), (152, 132239), (223, 90136), (446, 45068), (593, 33896), (892, 22534), (1186, 16948), (1784, 11267), (2372, 8474), (4237, 4744)]