20501360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23297}}^1$

素因数の和:23321

約数の個数: 40

約数和(自身を含む): 52001136

約数和(自身を除く): 31499776

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23297, 46594, 93188, 116485, 186376, 232970, 256267, 372752, 465940, 512534, 931880, 1025068, 1281335, 1863760, 2050136, 2562670, 4100272, 5125340, 10250680, 20501360]

約数ペア:

[(1, 20501360), (2, 10250680), (4, 5125340), (5, 4100272), (8, 2562670), (10, 2050136), (11, 1863760), (16, 1281335), (20, 1025068), (22, 931880), (40, 512534), (44, 465940), (55, 372752), (80, 256267), (88, 232970), (110, 186376), (176, 116485), (220, 93188), (440, 46594), (880, 23297)]