18434420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22481}}^1$

素因数の和:22531

約数の個数: 24

約数和(自身を含む): 39658248

約数和(自身を除く): 21223828

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22481, 44962, 89924, 112405, 224810, 449620, 921721, 1843442, 3686884, 4608605, 9217210, 18434420]

約数ペア:

[(1, 18434420), (2, 9217210), (4, 4608605), (5, 3686884), (10, 1843442), (20, 921721), (41, 449620), (82, 224810), (164, 112405), (205, 89924), (410, 44962), (820, 22481)]