68872520

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{5501}}^1$

素因数の和:5825

約数の個数: 32

約数和(自身を含む): 155486520

約数和(自身を除く): 86614000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 5501, 6260, 11002, 12520, 22004, 27505, 44008, 55010, 110020, 220040, 1721813, 3443626, 6887252, 8609065, 13774504, 17218130, 34436260, 68872520]

約数ペア:

[(1, 68872520), (2, 34436260), (4, 17218130), (5, 13774504), (8, 8609065), (10, 6887252), (20, 3443626), (40, 1721813), (313, 220040), (626, 110020), (1252, 55010), (1565, 44008), (2504, 27505), (3130, 22004), (5501, 12520), (6260, 11002)]