30890960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20323}}^1$

素因数の和:20355

約数の個数: 40

約数和(自身を含む): 75605280

約数和(自身を除く): 44714320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20323, 40646, 81292, 101615, 162584, 203230, 325168, 386137, 406460, 772274, 812920, 1544548, 1625840, 1930685, 3089096, 3861370, 6178192, 7722740, 15445480, 30890960]

約数ペア:

[(1, 30890960), (2, 15445480), (4, 7722740), (5, 6178192), (8, 3861370), (10, 3089096), (16, 1930685), (19, 1625840), (20, 1544548), (38, 812920), (40, 772274), (76, 406460), (80, 386137), (95, 325168), (152, 203230), (190, 162584), (304, 101615), (380, 81292), (760, 40646), (1520, 20323)]