420121945

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1\times {\mathrm{3541}}^1$

素因数の和:3996

約数の個数: 16

約数和(自身を含む): 513873360

約数和(自身を除く): 93751415

約数列:

[1, 5, 61, 305, 389, 1945, 3541, 17705, 23729, 118645, 216001, 1080005, 1377449, 6887245, 84024389, 420121945]

約数ペア:

[(1, 420121945), (5, 84024389), (61, 6887245), (305, 1377449), (389, 1080005), (1945, 216001), (3541, 118645), (17705, 23729)]