67664680

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4261}}^1$

素因数の和:4669

約数の個数: 32

約数和(自身を含む): 152664840

約数和(自身を除く): 85000160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 4261, 7940, 8522, 15880, 17044, 21305, 34088, 42610, 85220, 170440, 1691617, 3383234, 6766468, 8458085, 13532936, 16916170, 33832340, 67664680]

約数ペア:

[(1, 67664680), (2, 33832340), (4, 16916170), (5, 13532936), (8, 8458085), (10, 6766468), (20, 3383234), (40, 1691617), (397, 170440), (794, 85220), (1588, 42610), (1985, 34088), (3176, 21305), (3970, 17044), (4261, 15880), (7940, 8522)]