18285880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26891}}^1$

素因数の和:26919

約数の個数: 32

約数和(自身を含む): 43565040

約数和(自身を除く): 25279160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 26891, 53782, 107564, 134455, 215128, 268910, 457147, 537820, 914294, 1075640, 1828588, 2285735, 3657176, 4571470, 9142940, 18285880]

約数ペア:

[(1, 18285880), (2, 9142940), (4, 4571470), (5, 3657176), (8, 2285735), (10, 1828588), (17, 1075640), (20, 914294), (34, 537820), (40, 457147), (68, 268910), (85, 215128), (136, 134455), (170, 107564), (340, 53782), (680, 26891)]