38987720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23773}}^1$

素因数の和:23825

約数の個数: 32

約数和(自身を含む): 89865720

約数和(自身を除く): 50878000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 23773, 47546, 95092, 118865, 190184, 237730, 475460, 950920, 974693, 1949386, 3898772, 4873465, 7797544, 9746930, 19493860, 38987720]

約数ペア:

[(1, 38987720), (2, 19493860), (4, 9746930), (5, 7797544), (8, 4873465), (10, 3898772), (20, 1949386), (40, 974693), (41, 950920), (82, 475460), (164, 237730), (205, 190184), (328, 118865), (410, 95092), (820, 47546), (1640, 23773)]