64242140

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{4919}}^1$

素因数の和:5581

約数の個数: 24

約数和(自身を含む): 135142560

約数和(自身を除く): 70900420

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 2612, 3265, 4919, 6530, 9838, 13060, 19676, 24595, 49190, 98380, 3212107, 6424214, 12848428, 16060535, 32121070, 64242140]

約数ペア:

[(1, 64242140), (2, 32121070), (4, 16060535), (5, 12848428), (10, 6424214), (20, 3212107), (653, 98380), (1306, 49190), (2612, 24595), (3265, 19676), (4919, 13060), (6530, 9838)]