40738420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{49681}}^1$

素因数の和:49731

約数の個数: 24

約数和(自身を含む): 87639048

約数和(自身を除く): 46900628

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 49681, 99362, 198724, 248405, 496810, 993620, 2036921, 4073842, 8147684, 10184605, 20369210, 40738420]

約数ペア:

[(1, 40738420), (2, 20369210), (4, 10184605), (5, 8147684), (10, 4073842), (20, 2036921), (41, 993620), (82, 496810), (164, 248405), (205, 198724), (410, 99362), (820, 49681)]