67837780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{82729}}^1$

素因数の和:82779

約数の個数: 24

約数和(自身を含む): 145935720

約数和(自身を除く): 78097940

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 82729, 165458, 330916, 413645, 827290, 1654580, 3391889, 6783778, 13567556, 16959445, 33918890, 67837780]

約数ペア:

[(1, 67837780), (2, 33918890), (4, 16959445), (5, 13567556), (10, 6783778), (20, 3391889), (41, 1654580), (82, 827290), (164, 413645), (205, 330916), (410, 165458), (820, 82729)]