268353910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{128399}}^1$

素因数の和:128436

約数の個数: 32

約数和(自身を含む): 554688000

約数和(自身を除く): 286334090

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 128399, 256798, 641995, 1283990, 1412389, 2439581, 2824778, 4879162, 7061945, 12197905, 14123890, 24395810, 26835391, 53670782, 134176955, 268353910]

約数ペア:

[(1, 268353910), (2, 134176955), (5, 53670782), (10, 26835391), (11, 24395810), (19, 14123890), (22, 12197905), (38, 7061945), (55, 4879162), (95, 2824778), (110, 2439581), (190, 1412389), (209, 1283990), (418, 641995), (1045, 256798), (2090, 128399)]