7744780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 17388000

約数和(自身を除く): 9643220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 229, 356, 380, 445, 458, 890, 916, 1145, 1691, 1780, 2290, 3382, 4351, 4580, 6764, 8455, 8702, 16910, 17404, 20381, 21755, 33820, 40762, 43510, 81524, 87020, 101905, 203810, 387239, 407620, 774478, 1548956, 1936195, 3872390, 7744780]

約数ペア:

[(1, 7744780), (2, 3872390), (4, 1936195), (5, 1548956), (10, 774478), (19, 407620), (20, 387239), (38, 203810), (76, 101905), (89, 87020), (95, 81524), (178, 43510), (190, 40762), (229, 33820), (356, 21755), (380, 20381), (445, 17404), (458, 16910), (890, 8702), (916, 8455), (1145, 6764), (1691, 4580), (1780, 4351), (2290, 3382)]