78807080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179107}}^1$

素因数の和:179129

約数の個数: 32

約数和(自身を含む): 193436640

約数和(自身を除く): 114629560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 179107, 358214, 716428, 895535, 1432856, 1791070, 1970177, 3582140, 3940354, 7164280, 7880708, 9850885, 15761416, 19701770, 39403540, 78807080]

約数ペア:

[(1, 78807080), (2, 39403540), (4, 19701770), (5, 15761416), (8, 9850885), (10, 7880708), (11, 7164280), (20, 3940354), (22, 3582140), (40, 1970177), (44, 1791070), (55, 1432856), (88, 895535), (110, 716428), (220, 358214), (440, 179107)]