18622840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12583}}^1$

素因数の和:12631

約数の個数: 32

約数和(自身を含む): 43037280

約数和(自身を除く): 24414440

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 12583, 25166, 50332, 62915, 100664, 125830, 251660, 465571, 503320, 931142, 1862284, 2327855, 3724568, 4655710, 9311420, 18622840]

約数ペア:

[(1, 18622840), (2, 9311420), (4, 4655710), (5, 3724568), (8, 2327855), (10, 1862284), (20, 931142), (37, 503320), (40, 465571), (74, 251660), (148, 125830), (185, 100664), (296, 62915), (370, 50332), (740, 25166), (1480, 12583)]