816288580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{669089}}^1$

素因数の和:669159

約数の個数: 24

約数和(自身を含む): 1742310360

約数和(自身を除く): 926021780

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 669089, 1338178, 2676356, 3345445, 6690890, 13381780, 40814429, 81628858, 163257716, 204072145, 408144290, 816288580]

約数ペア:

[(1, 816288580), (2, 408144290), (4, 204072145), (5, 163257716), (10, 81628858), (20, 40814429), (61, 13381780), (122, 6690890), (244, 3345445), (305, 2676356), (610, 1338178), (1220, 669089)]