18822760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3889}}^1$

素因数の和:3922

約数の個数: 48

約数和(自身を含む): 46563300

約数和(自身を除く): 27740540

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 3889, 4840, 7778, 15556, 19445, 31112, 38890, 42779, 77780, 85558, 155560, 171116, 213895, 342232, 427790, 470569, 855580, 941138, 1711160, 1882276, 2352845, 3764552, 4705690, 9411380, 18822760]

約数ペア:

[(1, 18822760), (2, 9411380), (4, 4705690), (5, 3764552), (8, 2352845), (10, 1882276), (11, 1711160), (20, 941138), (22, 855580), (40, 470569), (44, 427790), (55, 342232), (88, 213895), (110, 171116), (121, 155560), (220, 85558), (242, 77780), (440, 42779), (484, 38890), (605, 31112), (968, 19445), (1210, 15556), (2420, 7778), (3889, 4840)]