28045520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18451}}^1$

素因数の和:18483

約数の個数: 40

約数和(自身を含む): 68641440

約数和(自身を除く): 40595920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 18451, 36902, 73804, 92255, 147608, 184510, 295216, 350569, 369020, 701138, 738040, 1402276, 1476080, 1752845, 2804552, 3505690, 5609104, 7011380, 14022760, 28045520]

約数ペア:

[(1, 28045520), (2, 14022760), (4, 7011380), (5, 5609104), (8, 3505690), (10, 2804552), (16, 1752845), (19, 1476080), (20, 1402276), (38, 738040), (40, 701138), (76, 369020), (80, 350569), (95, 295216), (152, 184510), (190, 147608), (304, 92255), (380, 73804), (760, 36902), (1520, 18451)]