18486140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{54371}}^1$

素因数の和:54397

約数の個数: 24

約数和(自身を含む): 41105232

約数和(自身を除く): 22619092

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 54371, 108742, 217484, 271855, 543710, 924307, 1087420, 1848614, 3697228, 4621535, 9243070, 18486140]

約数ペア:

[(1, 18486140), (2, 9243070), (4, 4621535), (5, 3697228), (10, 1848614), (17, 1087420), (20, 924307), (34, 543710), (68, 271855), (85, 217484), (170, 108742), (340, 54371)]