8021980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{13831}}^1$

素因数の和:13869

約数の個数: 24

約数和(自身を含む): 17428320

約数和(自身を除く): 9406340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 13831, 27662, 55324, 69155, 138310, 276620, 401099, 802198, 1604396, 2005495, 4010990, 8021980]

約数ペア:

[(1, 8021980), (2, 4010990), (4, 2005495), (5, 1604396), (10, 802198), (20, 401099), (29, 276620), (58, 138310), (116, 69155), (145, 55324), (290, 27662), (580, 13831)]