80459900

素因数分解:

$2^2\times 5^2\times {\mathrm{271}}^1\times {\mathrm{2969}}^1$

素因数の和:3254

約数の個数: 36

約数和(自身を含む): 175301280

約数和(自身を除く): 94841380

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 271, 542, 1084, 1355, 2710, 2969, 5420, 5938, 6775, 11876, 13550, 14845, 27100, 29690, 59380, 74225, 148450, 296900, 804599, 1609198, 3218396, 4022995, 8045990, 16091980, 20114975, 40229950, 80459900]

約数ペア:

[(1, 80459900), (2, 40229950), (4, 20114975), (5, 16091980), (10, 8045990), (20, 4022995), (25, 3218396), (50, 1609198), (100, 804599), (271, 296900), (542, 148450), (1084, 74225), (1355, 59380), (2710, 29690), (2969, 27100), (5420, 14845), (5938, 13550), (6775, 11876)]