180298960

素因数分解:

$2^4\times 5^1\times {\mathrm{571}}^1\times {\mathrm{3947}}^1$

素因数の和:4531

約数の個数: 40

約数和(自身を含む): 420035616

約数和(自身を除く): 239736656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 571, 1142, 2284, 2855, 3947, 4568, 5710, 7894, 9136, 11420, 15788, 19735, 22840, 31576, 39470, 45680, 63152, 78940, 157880, 315760, 2253737, 4507474, 9014948, 11268685, 18029896, 22537370, 36059792, 45074740, 90149480, 180298960]

約数ペア:

[(1, 180298960), (2, 90149480), (4, 45074740), (5, 36059792), (8, 22537370), (10, 18029896), (16, 11268685), (20, 9014948), (40, 4507474), (80, 2253737), (571, 315760), (1142, 157880), (2284, 78940), (2855, 63152), (3947, 45680), (4568, 39470), (5710, 31576), (7894, 22840), (9136, 19735), (11420, 15788)]