159016720

素因数分解:

$2^4\times 5^1\times {\mathrm{1987709}}^1$

素因数の和:1987722

約数の個数: 20

約数和(自身を含む): 369714060

約数和(自身を除く): 210697340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1987709, 3975418, 7950836, 9938545, 15901672, 19877090, 31803344, 39754180, 79508360, 159016720]

約数ペア:

[(1, 159016720), (2, 79508360), (4, 39754180), (5, 31803344), (8, 19877090), (10, 15901672), (16, 9938545), (20, 7950836), (40, 3975418), (80, 1987709)]