85817080

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{3347}}^1$

素因数の和:3999

約数の個数: 32

約数和(自身を含む): 193447440

約数和(自身を除く): 107630360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3205, 3347, 5128, 6410, 6694, 12820, 13388, 16735, 25640, 26776, 33470, 66940, 133880, 2145427, 4290854, 8581708, 10727135, 17163416, 21454270, 42908540, 85817080]

約数ペア:

[(1, 85817080), (2, 42908540), (4, 21454270), (5, 17163416), (8, 10727135), (10, 8581708), (20, 4290854), (40, 2145427), (641, 133880), (1282, 66940), (2564, 33470), (3205, 26776), (3347, 25640), (5128, 16735), (6410, 13388), (6694, 12820)]