51173120

素因数分解:

$2^8\times 5^1\times {\mathrm{39979}}^1$

素因数の和:40000

約数の個数: 36

約数和(自身を含む): 122578680

約数和(自身を除く): 71405560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 39979, 79958, 159916, 199895, 319832, 399790, 639664, 799580, 1279328, 1599160, 2558656, 3198320, 5117312, 6396640, 10234624, 12793280, 25586560, 51173120]

約数ペア:

[(1, 51173120), (2, 25586560), (4, 12793280), (5, 10234624), (8, 6396640), (10, 5117312), (16, 3198320), (20, 2558656), (32, 1599160), (40, 1279328), (64, 799580), (80, 639664), (128, 399790), (160, 319832), (256, 199895), (320, 159916), (640, 79958), (1280, 39979)]