20487290

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{467}}^1$

素因数の和:622

約数の個数: 32

約数和(自身を含む): 38211264

約数和(自身を除く): 17723974

約数列:

[1, 2, 5, 10, 41, 82, 107, 205, 214, 410, 467, 535, 934, 1070, 2335, 4387, 4670, 8774, 19147, 21935, 38294, 43870, 49969, 95735, 99938, 191470, 249845, 499690, 2048729, 4097458, 10243645, 20487290]

約数ペア:

[(1, 20487290), (2, 10243645), (5, 4097458), (10, 2048729), (41, 499690), (82, 249845), (107, 191470), (205, 99938), (214, 95735), (410, 49969), (467, 43870), (535, 38294), (934, 21935), (1070, 19147), (2335, 8774), (4387, 4670)]