391360

素因数分解:

$2^6\times 5^1\times {\mathrm{1223}}^1$

素因数の和:1240

約数の個数: 28

約数和(自身を含む): 932688

約数和(自身を除く): 541328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1223, 2446, 4892, 6115, 9784, 12230, 19568, 24460, 39136, 48920, 78272, 97840, 195680, 391360]

約数ペア:

[(1, 391360), (2, 195680), (4, 97840), (5, 78272), (8, 48920), (10, 39136), (16, 24460), (20, 19568), (32, 12230), (40, 9784), (64, 6115), (80, 4892), (160, 2446), (320, 1223)]