20629872065

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{409}}^1\times {\mathrm{2287}}^1$

素因数の和:3113

約数の個数: 32

約数和(自身を含む): 27151787520

約数和(自身を除く): 6521915455

約数列:

[1, 5, 11, 55, 401, 409, 2005, 2045, 2287, 4411, 4499, 11435, 22055, 22495, 25157, 125785, 164009, 820045, 917087, 935383, 1804099, 4585435, 4676915, 9020495, 10087957, 10289213, 50439785, 51446065, 375088583, 1875442915, 4125974413, 20629872065]

約数ペア:

[(1, 20629872065), (5, 4125974413), (11, 1875442915), (55, 375088583), (401, 51446065), (409, 50439785), (2005, 10289213), (2045, 10087957), (2287, 9020495), (4411, 4676915), (4499, 4585435), (11435, 1804099), (22055, 935383), (22495, 917087), (25157, 820045), (125785, 164009)]