80205640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{54193}}^1$

素因数の和:54241

約数の個数: 32

約数和(自身を含む): 185343480

約数和(自身を除く): 105137840

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 54193, 108386, 216772, 270965, 433544, 541930, 1083860, 2005141, 2167720, 4010282, 8020564, 10025705, 16041128, 20051410, 40102820, 80205640]

約数ペア:

[(1, 80205640), (2, 40102820), (4, 20051410), (5, 16041128), (8, 10025705), (10, 8020564), (20, 4010282), (37, 2167720), (40, 2005141), (74, 1083860), (148, 541930), (185, 433544), (296, 270965), (370, 216772), (740, 108386), (1480, 54193)]