18614960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2557}}^1$

素因数の和:2590

約数の個数: 80

約数和(自身を含む): 53288256

約数和(自身を除く): 34673296

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 2557, 3640, 5114, 7280, 10228, 12785, 17899, 20456, 25570, 33241, 35798, 40912, 51140, 66482, 71596, 89495, 102280, 132964, 143192, 166205, 178990, 204560, 232687, 265928, 286384, 332410, 357980, 465374, 531856, 664820, 715960, 930748, 1163435, 1329640, 1431920, 1861496, 2326870, 2659280, 3722992, 4653740, 9307480, 18614960]

約数ペア:

[(1, 18614960), (2, 9307480), (4, 4653740), (5, 3722992), (7, 2659280), (8, 2326870), (10, 1861496), (13, 1431920), (14, 1329640), (16, 1163435), (20, 930748), (26, 715960), (28, 664820), (35, 531856), (40, 465374), (52, 357980), (56, 332410), (65, 286384), (70, 265928), (80, 232687), (91, 204560), (104, 178990), (112, 166205), (130, 143192), (140, 132964), (182, 102280), (208, 89495), (260, 71596), (280, 66482), (364, 51140), (455, 40912), (520, 35798), (560, 33241), (728, 25570), (910, 20456), (1040, 17899), (1456, 12785), (1820, 10228), (2557, 7280), (3640, 5114)]