80502080

素因数分解:

$2^6\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1277}}^1$

素因数の和:1491

約数の個数: 56

約数和(自身を含む): 192819528

約数和(自身を除く): 112317448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 197, 320, 394, 788, 985, 1277, 1576, 1970, 2554, 3152, 3940, 5108, 6304, 6385, 7880, 10216, 12608, 12770, 15760, 20432, 25540, 31520, 40864, 51080, 63040, 81728, 102160, 204320, 251569, 408640, 503138, 1006276, 1257845, 2012552, 2515690, 4025104, 5031380, 8050208, 10062760, 16100416, 20125520, 40251040, 80502080]

約数ペア:

[(1, 80502080), (2, 40251040), (4, 20125520), (5, 16100416), (8, 10062760), (10, 8050208), (16, 5031380), (20, 4025104), (32, 2515690), (40, 2012552), (64, 1257845), (80, 1006276), (160, 503138), (197, 408640), (320, 251569), (394, 204320), (788, 102160), (985, 81728), (1277, 63040), (1576, 51080), (1970, 40864), (2554, 31520), (3152, 25540), (3940, 20432), (5108, 15760), (6304, 12770), (6385, 12608), (7880, 10216)]