18996340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1093}}^1$

素因数の和:1192

約数の個数: 48

約数和(自身を含む): 44110080

約数和(自身を除く): 25113740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1093, 1580, 1738, 2186, 3476, 4345, 4372, 5465, 8690, 10930, 12023, 17380, 21860, 24046, 48092, 60115, 86347, 120230, 172694, 240460, 345388, 431735, 863470, 949817, 1726940, 1899634, 3799268, 4749085, 9498170, 18996340]

約数ペア:

[(1, 18996340), (2, 9498170), (4, 4749085), (5, 3799268), (10, 1899634), (11, 1726940), (20, 949817), (22, 863470), (44, 431735), (55, 345388), (79, 240460), (110, 172694), (158, 120230), (220, 86347), (316, 60115), (395, 48092), (790, 24046), (869, 21860), (1093, 17380), (1580, 12023), (1738, 10930), (2186, 8690), (3476, 5465), (4345, 4372)]