18456790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{8831}}^1$

素因数の和:8868

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 19697450

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 8831, 17662, 44155, 88310, 97141, 167789, 194282, 335578, 485705, 838945, 971410, 1677890, 1845679, 3691358, 9228395, 18456790]

約数ペア:

[(1, 18456790), (2, 9228395), (5, 3691358), (10, 1845679), (11, 1677890), (19, 971410), (22, 838945), (38, 485705), (55, 335578), (95, 194282), (110, 167789), (190, 97141), (209, 88310), (418, 44155), (1045, 17662), (2090, 8831)]