80401960

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{42767}}^1$

素因数の和:42825

約数の個数: 32

約数和(自身を含む): 184757760

約数和(自身を除く): 104355800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 42767, 85534, 171068, 213835, 342136, 427670, 855340, 1710680, 2010049, 4020098, 8040196, 10050245, 16080392, 20100490, 40200980, 80401960]

約数ペア:

[(1, 80401960), (2, 40200980), (4, 20100490), (5, 16080392), (8, 10050245), (10, 8040196), (20, 4020098), (40, 2010049), (47, 1710680), (94, 855340), (188, 427670), (235, 342136), (376, 213835), (470, 171068), (940, 85534), (1880, 42767)]