22400450

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 43390080

約数和(自身を除く): 20989630

約数列:

[1, 2, 5, 10, 25, 50, 53, 79, 106, 107, 158, 214, 265, 395, 530, 535, 790, 1070, 1325, 1975, 2650, 2675, 3950, 4187, 5350, 5671, 8374, 8453, 11342, 16906, 20935, 28355, 41870, 42265, 56710, 84530, 104675, 141775, 209350, 211325, 283550, 422650, 448009, 896018, 2240045, 4480090, 11200225, 22400450]

約数ペア:

[(1, 22400450), (2, 11200225), (5, 4480090), (10, 2240045), (25, 896018), (50, 448009), (53, 422650), (79, 283550), (106, 211325), (107, 209350), (158, 141775), (214, 104675), (265, 84530), (395, 56710), (530, 42265), (535, 41870), (790, 28355), (1070, 20935), (1325, 16906), (1975, 11342), (2650, 8453), (2675, 8374), (3950, 5671), (4187, 5350)]