30979120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:350

約数の個数: 80

約数和(自身を含む): 77004000

約数和(自身を除く): 46024880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 89, 95, 152, 178, 190, 229, 304, 356, 380, 445, 458, 712, 760, 890, 916, 1145, 1424, 1520, 1691, 1780, 1832, 2290, 3382, 3560, 3664, 4351, 4580, 6764, 7120, 8455, 8702, 9160, 13528, 16910, 17404, 18320, 20381, 21755, 27056, 33820, 34808, 40762, 43510, 67640, 69616, 81524, 87020, 101905, 135280, 163048, 174040, 203810, 326096, 348080, 387239, 407620, 774478, 815240, 1548956, 1630480, 1936195, 3097912, 3872390, 6195824, 7744780, 15489560, 30979120]

約数ペア:

[(1, 30979120), (2, 15489560), (4, 7744780), (5, 6195824), (8, 3872390), (10, 3097912), (16, 1936195), (19, 1630480), (20, 1548956), (38, 815240), (40, 774478), (76, 407620), (80, 387239), (89, 348080), (95, 326096), (152, 203810), (178, 174040), (190, 163048), (229, 135280), (304, 101905), (356, 87020), (380, 81524), (445, 69616), (458, 67640), (712, 43510), (760, 40762), (890, 34808), (916, 33820), (1145, 27056), (1424, 21755), (1520, 20381), (1691, 18320), (1780, 17404), (1832, 16910), (2290, 13528), (3382, 9160), (3560, 8702), (3664, 8455), (4351, 7120), (4580, 6764)]