206985680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{235211}}^1$

素因数の和:235235

約数の個数: 40

約数和(自身を含む): 524993184

約数和(自身を除く): 318007504

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 235211, 470422, 940844, 1176055, 1881688, 2352110, 2587321, 3763376, 4704220, 5174642, 9408440, 10349284, 12936605, 18816880, 20698568, 25873210, 41397136, 51746420, 103492840, 206985680]

約数ペア:

[(1, 206985680), (2, 103492840), (4, 51746420), (5, 41397136), (8, 25873210), (10, 20698568), (11, 18816880), (16, 12936605), (20, 10349284), (22, 9408440), (40, 5174642), (44, 4704220), (55, 3763376), (80, 2587321), (88, 2352110), (110, 1881688), (176, 1176055), (220, 940844), (440, 470422), (880, 235211)]