15515440

素因数分解:

$2^4\times 5^1\times {\mathrm{193943}}^1$

素因数の和:193956

約数の個数: 20

約数和(自身を含む): 36073584

約数和(自身を除く): 20558144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193943, 387886, 775772, 969715, 1551544, 1939430, 3103088, 3878860, 7757720, 15515440]

約数ペア:

[(1, 15515440), (2, 7757720), (4, 3878860), (5, 3103088), (8, 1939430), (10, 1551544), (16, 969715), (20, 775772), (40, 387886), (80, 193943)]