127706960

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4021}}^1$

素因数の和:4431

約数の個数: 40

約数和(自身を含む): 297740616

約数和(自身を除く): 170033656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 1588, 1985, 3176, 3970, 4021, 6352, 7940, 8042, 15880, 16084, 20105, 31760, 32168, 40210, 64336, 80420, 160840, 321680, 1596337, 3192674, 6385348, 7981685, 12770696, 15963370, 25541392, 31926740, 63853480, 127706960]

約数ペア:

[(1, 127706960), (2, 63853480), (4, 31926740), (5, 25541392), (8, 15963370), (10, 12770696), (16, 7981685), (20, 6385348), (40, 3192674), (80, 1596337), (397, 321680), (794, 160840), (1588, 80420), (1985, 64336), (3176, 40210), (3970, 32168), (4021, 31760), (6352, 20105), (7940, 16084), (8042, 15880)]