2019762980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{881}}^1\times {\mathrm{1451}}^1$

素因数の和:2420

約数の個数: 48

約数和(自身を含む): 4303031040

約数和(自身を除く): 2283268060

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 881, 1451, 1580, 1762, 2902, 3524, 4405, 5804, 7255, 8810, 14510, 17620, 29020, 69599, 114629, 139198, 229258, 278396, 347995, 458516, 573145, 695990, 1146290, 1278331, 1391980, 2292580, 2556662, 5113324, 6391655, 12783310, 25566620, 100988149, 201976298, 403952596, 504940745, 1009881490, 2019762980]

約数ペア:

[(1, 2019762980), (2, 1009881490), (4, 504940745), (5, 403952596), (10, 201976298), (20, 100988149), (79, 25566620), (158, 12783310), (316, 6391655), (395, 5113324), (790, 2556662), (881, 2292580), (1451, 1391980), (1580, 1278331), (1762, 1146290), (2902, 695990), (3524, 573145), (4405, 458516), (5804, 347995), (7255, 278396), (8810, 229258), (14510, 139198), (17620, 114629), (29020, 69599)]