18666440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35897}}^1$

素因数の和:35921

約数の個数: 32

約数和(自身を含む): 45231480

約数和(自身を除く): 26565040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 35897, 71794, 143588, 179485, 287176, 358970, 466661, 717940, 933322, 1435880, 1866644, 2333305, 3733288, 4666610, 9333220, 18666440]

約数ペア:

[(1, 18666440), (2, 9333220), (4, 4666610), (5, 3733288), (8, 2333305), (10, 1866644), (13, 1435880), (20, 933322), (26, 717940), (40, 466661), (52, 358970), (65, 287176), (104, 179485), (130, 143588), (260, 71794), (520, 35897)]