68891120

素因数分解:

$2^4\times 5^1\times {\mathrm{861139}}^1$

素因数の和:861152

約数の個数: 20

約数和(自身を含む): 160172040

約数和(自身を除く): 91280920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 861139, 1722278, 3444556, 4305695, 6889112, 8611390, 13778224, 17222780, 34445560, 68891120]

約数ペア:

[(1, 68891120), (2, 34445560), (4, 17222780), (5, 13778224), (8, 8611390), (10, 6889112), (16, 4305695), (20, 3444556), (40, 1722278), (80, 861139)]