18137080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2683}}^1$

素因数の和:2720

約数の個数: 48

約数和(自身を含む): 44205480

約数和(自身を除く): 26068400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 2683, 3380, 5366, 6760, 10732, 13415, 21464, 26830, 34879, 53660, 69758, 107320, 139516, 174395, 279032, 348790, 453427, 697580, 906854, 1395160, 1813708, 2267135, 3627416, 4534270, 9068540, 18137080]

約数ペア:

[(1, 18137080), (2, 9068540), (4, 4534270), (5, 3627416), (8, 2267135), (10, 1813708), (13, 1395160), (20, 906854), (26, 697580), (40, 453427), (52, 348790), (65, 279032), (104, 174395), (130, 139516), (169, 107320), (260, 69758), (338, 53660), (520, 34879), (676, 26830), (845, 21464), (1352, 13415), (1690, 10732), (2683, 6760), (3380, 5366)]