78704240

素因数分解:

$2^4\times 5^1\times {\mathrm{983803}}^1$

素因数の和:983816

約数の個数: 20

約数和(自身を含む): 182987544

約数和(自身を除く): 104283304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 983803, 1967606, 3935212, 4919015, 7870424, 9838030, 15740848, 19676060, 39352120, 78704240]

約数ペア:

[(1, 78704240), (2, 39352120), (4, 19676060), (5, 15740848), (8, 9838030), (10, 7870424), (16, 4919015), (20, 3935212), (40, 1967606), (80, 983803)]