166987678840

素因数分解:

$2^3\times 5^1\times {\mathrm{4174691971}}^1$

素因数の和:4174691982

約数の個数: 16

約数和(自身を含む): 375722277480

約数和(自身を除く): 208734598640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4174691971, 8349383942, 16698767884, 20873459855, 33397535768, 41746919710, 83493839420, 166987678840]

約数ペア:

[(1, 166987678840), (2, 83493839420), (4, 41746919710), (5, 33397535768), (8, 20873459855), (10, 16698767884), (20, 8349383942), (40, 4174691971)]