8972440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5471}}^1$

素因数の和:5523

約数の個数: 32

約数和(自身を含む): 20684160

約数和(自身を除く): 11711720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 5471, 10942, 21884, 27355, 43768, 54710, 109420, 218840, 224311, 448622, 897244, 1121555, 1794488, 2243110, 4486220, 8972440]

約数ペア:

[(1, 8972440), (2, 4486220), (4, 2243110), (5, 1794488), (8, 1121555), (10, 897244), (20, 448622), (40, 224311), (41, 218840), (82, 109420), (164, 54710), (205, 43768), (328, 27355), (410, 21884), (820, 10942), (1640, 5471)]