20687480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47017}}^1$

素因数の和:47039

約数の個数: 32

約数和(自身を含む): 50779440

約数和(自身を除く): 30091960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47017, 94034, 188068, 235085, 376136, 470170, 517187, 940340, 1034374, 1880680, 2068748, 2585935, 4137496, 5171870, 10343740, 20687480]

約数ペア:

[(1, 20687480), (2, 10343740), (4, 5171870), (5, 4137496), (8, 2585935), (10, 2068748), (11, 1880680), (20, 1034374), (22, 940340), (40, 517187), (44, 470170), (55, 376136), (88, 235085), (110, 188068), (220, 94034), (440, 47017)]