12657280

素因数分解:

$2^7\times 5^1\times {\mathrm{19777}}^1$

素因数の和:19796

約数の個数: 32

約数和(自身を含む): 30260340

約数和(自身を除く): 17603060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 19777, 39554, 79108, 98885, 158216, 197770, 316432, 395540, 632864, 791080, 1265728, 1582160, 2531456, 3164320, 6328640, 12657280]

約数ペア:

[(1, 12657280), (2, 6328640), (4, 3164320), (5, 2531456), (8, 1582160), (10, 1265728), (16, 791080), (20, 632864), (32, 395540), (40, 316432), (64, 197770), (80, 158216), (128, 98885), (160, 79108), (320, 39554), (640, 19777)]