13117840

素因数分解:

$2^4\times 5^1\times {\mathrm{163973}}^1$

素因数の和:163986

約数の個数: 20

約数和(自身を含む): 30499164

約数和(自身を除く): 17381324

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163973, 327946, 655892, 819865, 1311784, 1639730, 2623568, 3279460, 6558920, 13117840]

約数ペア:

[(1, 13117840), (2, 6558920), (4, 3279460), (5, 2623568), (8, 1639730), (10, 1311784), (16, 819865), (20, 655892), (40, 327946), (80, 163973)]