20216071640

素因数分解:

$2^3\times 5^1\times {\mathrm{6379}}^1\times {\mathrm{79229}}^1$

素因数の和:85619

約数の個数: 32

約数和(自身を含む): 45493866000

約数和(自身を除く): 25277794360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6379, 12758, 25516, 31895, 51032, 63790, 79229, 127580, 158458, 255160, 316916, 396145, 633832, 792290, 1584580, 3169160, 505401791, 1010803582, 2021607164, 2527008955, 4043214328, 5054017910, 10108035820, 20216071640]

約数ペア:

[(1, 20216071640), (2, 10108035820), (4, 5054017910), (5, 4043214328), (8, 2527008955), (10, 2021607164), (20, 1010803582), (40, 505401791), (6379, 3169160), (12758, 1584580), (25516, 792290), (31895, 633832), (51032, 396145), (63790, 316916), (79229, 255160), (127580, 158458)]