646550

素因数分解:

$2^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:272

約数の個数: 24

約数和(自身を含む): 1226856

約数和(自身を除く): 580306

約数列:

[1, 2, 5, 10, 25, 50, 67, 134, 193, 335, 386, 670, 965, 1675, 1930, 3350, 4825, 9650, 12931, 25862, 64655, 129310, 323275, 646550]

約数ペア:

[(1, 646550), (2, 323275), (5, 129310), (10, 64655), (25, 25862), (50, 12931), (67, 9650), (134, 4825), (193, 3350), (335, 1930), (386, 1675), (670, 965)]