81819815

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{953}}^1$

素因数の和:1199

約数の個数: 32

約数和(自身を含む): 123088896

約数和(自身を除く): 41269081

約数列:

[1, 5, 7, 11, 35, 55, 77, 223, 385, 953, 1115, 1561, 2453, 4765, 6671, 7805, 10483, 12265, 17171, 33355, 52415, 73381, 85855, 212519, 366905, 1062595, 1487633, 2337709, 7438165, 11688545, 16363963, 81819815]

約数ペア:

[(1, 81819815), (5, 16363963), (7, 11688545), (11, 7438165), (35, 2337709), (55, 1487633), (77, 1062595), (223, 366905), (385, 212519), (953, 85855), (1115, 73381), (1561, 52415), (2453, 33355), (4765, 17171), (6671, 12265), (7805, 10483)]