18755440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21313}}^1$

素因数の和:21337

約数の個数: 40

約数和(自身を含む): 47572848

約数和(自身を除く): 28817408

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21313, 42626, 85252, 106565, 170504, 213130, 234443, 341008, 426260, 468886, 852520, 937772, 1172215, 1705040, 1875544, 2344430, 3751088, 4688860, 9377720, 18755440]

約数ペア:

[(1, 18755440), (2, 9377720), (4, 4688860), (5, 3751088), (8, 2344430), (10, 1875544), (11, 1705040), (16, 1172215), (20, 937772), (22, 852520), (40, 468886), (44, 426260), (55, 341008), (80, 234443), (88, 213130), (110, 170504), (176, 106565), (220, 85252), (440, 42626), (880, 21313)]