18596240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17881}}^1$

素因数の和:17907

約数の個数: 40

約数和(自身を含む): 46564728

約数和(自身を除く): 27968488

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17881, 35762, 71524, 89405, 143048, 178810, 232453, 286096, 357620, 464906, 715240, 929812, 1162265, 1430480, 1859624, 2324530, 3719248, 4649060, 9298120, 18596240]

約数ペア:

[(1, 18596240), (2, 9298120), (4, 4649060), (5, 3719248), (8, 2324530), (10, 1859624), (13, 1430480), (16, 1162265), (20, 929812), (26, 715240), (40, 464906), (52, 357620), (65, 286096), (80, 232453), (104, 178810), (130, 143048), (208, 89405), (260, 71524), (520, 35762), (1040, 17881)]