4772020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 11088000

約数和(自身を除く): 6315980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 199, 218, 220, 398, 436, 545, 796, 995, 1090, 1199, 1990, 2180, 2189, 2398, 3980, 4378, 4796, 5995, 8756, 10945, 11990, 21691, 21890, 23980, 43382, 43780, 86764, 108455, 216910, 238601, 433820, 477202, 954404, 1193005, 2386010, 4772020]

約数ペア:

[(1, 4772020), (2, 2386010), (4, 1193005), (5, 954404), (10, 477202), (11, 433820), (20, 238601), (22, 216910), (44, 108455), (55, 86764), (109, 43780), (110, 43382), (199, 23980), (218, 21890), (220, 21691), (398, 11990), (436, 10945), (545, 8756), (796, 5995), (995, 4796), (1090, 4378), (1199, 3980), (1990, 2398), (2180, 2189)]