71229680

素因数分解:

$2^4\times 5^1\times {\mathrm{890371}}^1$

素因数の和:890384

約数の個数: 20

約数和(自身を含む): 165609192

約数和(自身を除く): 94379512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 890371, 1780742, 3561484, 4451855, 7122968, 8903710, 14245936, 17807420, 35614840, 71229680]

約数ペア:

[(1, 71229680), (2, 35614840), (4, 17807420), (5, 14245936), (8, 8903710), (10, 7122968), (16, 4451855), (20, 3561484), (40, 1780742), (80, 890371)]