64749020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{462493}}^1$

素因数の和:462509

約数の個数: 24

約数和(自身を含む): 155397984

約数和(自身を除く): 90648964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 462493, 924986, 1849972, 2312465, 3237451, 4624930, 6474902, 9249860, 12949804, 16187255, 32374510, 64749020]

約数ペア:

[(1, 64749020), (2, 32374510), (4, 16187255), (5, 12949804), (7, 9249860), (10, 6474902), (14, 4624930), (20, 3237451), (28, 2312465), (35, 1849972), (70, 924986), (140, 462493)]