77481680

素因数分解:

$2^4\times 5^1\times {\mathrm{968521}}^1$

素因数の和:968534

約数の個数: 20

約数和(自身を含む): 180145092

約数和(自身を除く): 102663412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 968521, 1937042, 3874084, 4842605, 7748168, 9685210, 15496336, 19370420, 38740840, 77481680]

約数ペア:

[(1, 77481680), (2, 38740840), (4, 19370420), (5, 15496336), (8, 9685210), (10, 7748168), (16, 4842605), (20, 3874084), (40, 1937042), (80, 968521)]