15489560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 37260000

約数和(自身を除く): 21770440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 229, 356, 380, 445, 458, 712, 760, 890, 916, 1145, 1691, 1780, 1832, 2290, 3382, 3560, 4351, 4580, 6764, 8455, 8702, 9160, 13528, 16910, 17404, 20381, 21755, 33820, 34808, 40762, 43510, 67640, 81524, 87020, 101905, 163048, 174040, 203810, 387239, 407620, 774478, 815240, 1548956, 1936195, 3097912, 3872390, 7744780, 15489560]

約数ペア:

[(1, 15489560), (2, 7744780), (4, 3872390), (5, 3097912), (8, 1936195), (10, 1548956), (19, 815240), (20, 774478), (38, 407620), (40, 387239), (76, 203810), (89, 174040), (95, 163048), (152, 101905), (178, 87020), (190, 81524), (229, 67640), (356, 43510), (380, 40762), (445, 34808), (458, 33820), (712, 21755), (760, 20381), (890, 17404), (916, 16910), (1145, 13528), (1691, 9160), (1780, 8702), (1832, 8455), (2290, 6764), (3382, 4580), (3560, 4351)]