18694280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42487}}^1$

素因数の和:42509

約数の個数: 32

約数和(自身を含む): 45887040

約数和(自身を除く): 27192760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42487, 84974, 169948, 212435, 339896, 424870, 467357, 849740, 934714, 1699480, 1869428, 2336785, 3738856, 4673570, 9347140, 18694280]

約数ペア:

[(1, 18694280), (2, 9347140), (4, 4673570), (5, 3738856), (8, 2336785), (10, 1869428), (11, 1699480), (20, 934714), (22, 849740), (40, 467357), (44, 424870), (55, 339896), (88, 212435), (110, 169948), (220, 84974), (440, 42487)]