18798660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{577}}^1$

素因数の和:773

約数の個数: 72

約数和(自身を含む): 57437016

約数和(自身を除く): 38638356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 543, 577, 724, 905, 1086, 1154, 1629, 1731, 1810, 2172, 2308, 2715, 2885, 3258, 3462, 3620, 5193, 5430, 5770, 6516, 6924, 8145, 8655, 10386, 10860, 11540, 16290, 17310, 20772, 25965, 32580, 34620, 51930, 103860, 104437, 208874, 313311, 417748, 522185, 626622, 939933, 1044370, 1253244, 1566555, 1879866, 2088740, 3133110, 3759732, 4699665, 6266220, 9399330, 18798660]

約数ペア:

[(1, 18798660), (2, 9399330), (3, 6266220), (4, 4699665), (5, 3759732), (6, 3133110), (9, 2088740), (10, 1879866), (12, 1566555), (15, 1253244), (18, 1044370), (20, 939933), (30, 626622), (36, 522185), (45, 417748), (60, 313311), (90, 208874), (180, 104437), (181, 103860), (362, 51930), (543, 34620), (577, 32580), (724, 25965), (905, 20772), (1086, 17310), (1154, 16290), (1629, 11540), (1731, 10860), (1810, 10386), (2172, 8655), (2308, 8145), (2715, 6924), (2885, 6516), (3258, 5770), (3462, 5430), (3620, 5193)]