81611090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{4099}}^1$

素因数の和:4298

約数の個数: 32

約数和(自身を含む): 161179200

約数和(自身を除く): 79568110

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 181, 362, 905, 1810, 1991, 3982, 4099, 8198, 9955, 19910, 20495, 40990, 45089, 90178, 225445, 450890, 741919, 1483838, 3709595, 7419190, 8161109, 16322218, 40805545, 81611090]

約数ペア:

[(1, 81611090), (2, 40805545), (5, 16322218), (10, 8161109), (11, 7419190), (22, 3709595), (55, 1483838), (110, 741919), (181, 450890), (362, 225445), (905, 90178), (1810, 45089), (1991, 40990), (3982, 20495), (4099, 19910), (8198, 9955)]