1565440

素因数分解:

$2^8\times 5^1\times {\mathrm{1223}}^1$

素因数の和:1244

約数の個数: 36

約数和(自身を含む): 3752784

約数和(自身を除く): 2187344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1223, 1280, 2446, 4892, 6115, 9784, 12230, 19568, 24460, 39136, 48920, 78272, 97840, 156544, 195680, 313088, 391360, 782720, 1565440]

約数ペア:

[(1, 1565440), (2, 782720), (4, 391360), (5, 313088), (8, 195680), (10, 156544), (16, 97840), (20, 78272), (32, 48920), (40, 39136), (64, 24460), (80, 19568), (128, 12230), (160, 9784), (256, 6115), (320, 4892), (640, 2446), (1223, 1280)]