8628040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5261}}^1$

素因数の和:5313

約数の個数: 32

約数和(自身を含む): 19890360

約数和(自身を除く): 11262320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 5261, 10522, 21044, 26305, 42088, 52610, 105220, 210440, 215701, 431402, 862804, 1078505, 1725608, 2157010, 4314020, 8628040]

約数ペア:

[(1, 8628040), (2, 4314020), (4, 2157010), (5, 1725608), (8, 1078505), (10, 862804), (20, 431402), (40, 215701), (41, 210440), (82, 105220), (164, 52610), (205, 42088), (328, 26305), (410, 21044), (820, 10522), (1640, 5261)]