68961680

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20047}}^1$

素因数の和:20103

約数の個数: 40

約数和(自身を含む): 164072832

約数和(自身を除く): 95111152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 20047, 40094, 80188, 100235, 160376, 200470, 320752, 400940, 801880, 862021, 1603760, 1724042, 3448084, 4310105, 6896168, 8620210, 13792336, 17240420, 34480840, 68961680]

約数ペア:

[(1, 68961680), (2, 34480840), (4, 17240420), (5, 13792336), (8, 8620210), (10, 6896168), (16, 4310105), (20, 3448084), (40, 1724042), (43, 1603760), (80, 862021), (86, 801880), (172, 400940), (215, 320752), (344, 200470), (430, 160376), (688, 100235), (860, 80188), (1720, 40094), (3440, 20047)]