81488990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43577}}^1$

素因数の和:43612

約数の個数: 32

約数和(自身を含む): 169431264

約数和(自身を除く): 87942274

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 43577, 87154, 217885, 435770, 479347, 740809, 958694, 1481618, 2396735, 3704045, 4793470, 7408090, 8148899, 16297798, 40744495, 81488990]

約数ペア:

[(1, 81488990), (2, 40744495), (5, 16297798), (10, 8148899), (11, 7408090), (17, 4793470), (22, 3704045), (34, 2396735), (55, 1481618), (85, 958694), (110, 740809), (170, 479347), (187, 435770), (374, 217885), (935, 87154), (1870, 43577)]