12786560

素因数分解:

$2^7\times 5^1\times {\mathrm{19979}}^1$

素因数の和:19998

約数の個数: 32

約数和(自身を含む): 30569400

約数和(自身を除く): 17782840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 19979, 39958, 79916, 99895, 159832, 199790, 319664, 399580, 639328, 799160, 1278656, 1598320, 2557312, 3196640, 6393280, 12786560]

約数ペア:

[(1, 12786560), (2, 6393280), (4, 3196640), (5, 2557312), (8, 1598320), (10, 1278656), (16, 799160), (20, 639328), (32, 399580), (40, 319664), (64, 199790), (80, 159832), (128, 99895), (160, 79916), (320, 39958), (640, 19979)]