18994740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1607}}^1$

素因数の和:1816

約数の個数: 48

約数和(自身を含む): 53488512

約数和(自身を除く): 34493772

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 197, 394, 591, 788, 985, 1182, 1607, 1970, 2364, 2955, 3214, 3940, 4821, 5910, 6428, 8035, 9642, 11820, 16070, 19284, 24105, 32140, 48210, 96420, 316579, 633158, 949737, 1266316, 1582895, 1899474, 3165790, 3798948, 4748685, 6331580, 9497370, 18994740]

約数ペア:

[(1, 18994740), (2, 9497370), (3, 6331580), (4, 4748685), (5, 3798948), (6, 3165790), (10, 1899474), (12, 1582895), (15, 1266316), (20, 949737), (30, 633158), (60, 316579), (197, 96420), (394, 48210), (591, 32140), (788, 24105), (985, 19284), (1182, 16070), (1607, 11820), (1970, 9642), (2364, 8035), (2955, 6428), (3214, 5910), (3940, 4821)]