81671920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{92809}}^1$

素因数の和:92833

約数の個数: 40

約数和(自身を含む): 207151920

約数和(自身を除く): 125480000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 92809, 185618, 371236, 464045, 742472, 928090, 1020899, 1484944, 1856180, 2041798, 3712360, 4083596, 5104495, 7424720, 8167192, 10208990, 16334384, 20417980, 40835960, 81671920]

約数ペア:

[(1, 81671920), (2, 40835960), (4, 20417980), (5, 16334384), (8, 10208990), (10, 8167192), (11, 7424720), (16, 5104495), (20, 4083596), (22, 3712360), (40, 2041798), (44, 1856180), (55, 1484944), (80, 1020899), (88, 928090), (110, 742472), (176, 464045), (220, 371236), (440, 185618), (880, 92809)]