20895080

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18013}}^1$

素因数の和:18053

約数の個数: 32

約数和(自身を含む): 48637800

約数和(自身を除く): 27742720

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18013, 36026, 72052, 90065, 144104, 180130, 360260, 522377, 720520, 1044754, 2089508, 2611885, 4179016, 5223770, 10447540, 20895080]

約数ペア:

[(1, 20895080), (2, 10447540), (4, 5223770), (5, 4179016), (8, 2611885), (10, 2089508), (20, 1044754), (29, 720520), (40, 522377), (58, 360260), (116, 180130), (145, 144104), (232, 90065), (290, 72052), (580, 36026), (1160, 18013)]