20810510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15647}}^1$

素因数の和:15680

約数の個数: 32

約数和(自身を含む): 45066240

約数和(自身を除く): 24255730

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 15647, 31294, 78235, 109529, 156470, 219058, 297293, 547645, 594586, 1095290, 1486465, 2081051, 2972930, 4162102, 10405255, 20810510]

約数ペア:

[(1, 20810510), (2, 10405255), (5, 4162102), (7, 2972930), (10, 2081051), (14, 1486465), (19, 1095290), (35, 594586), (38, 547645), (70, 297293), (95, 219058), (133, 156470), (190, 109529), (266, 78235), (665, 31294), (1330, 15647)]