39820840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24281}}^1$

素因数の和:24333

約数の個数: 32

約数和(自身を含む): 91785960

約数和(自身を除く): 51965120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 24281, 48562, 97124, 121405, 194248, 242810, 485620, 971240, 995521, 1991042, 3982084, 4977605, 7964168, 9955210, 19910420, 39820840]

約数ペア:

[(1, 39820840), (2, 19910420), (4, 9955210), (5, 7964168), (8, 4977605), (10, 3982084), (20, 1991042), (40, 995521), (41, 971240), (82, 485620), (164, 242810), (205, 194248), (328, 121405), (410, 97124), (820, 48562), (1640, 24281)]