8738840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19861}}^1$

素因数の和:19883

約数の個数: 32

約数和(自身を含む): 21450960

約数和(自身を除く): 12712120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 19861, 39722, 79444, 99305, 158888, 198610, 218471, 397220, 436942, 794440, 873884, 1092355, 1747768, 2184710, 4369420, 8738840]

約数ペア:

[(1, 8738840), (2, 4369420), (4, 2184710), (5, 1747768), (8, 1092355), (10, 873884), (11, 794440), (20, 436942), (22, 397220), (40, 218471), (44, 198610), (55, 158888), (88, 99305), (110, 79444), (220, 39722), (440, 19861)]