17974280

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2281}}^1$

素因数の和:2489

約数の個数: 32

約数和(自身を含む): 40665240

約数和(自身を除く): 22690960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 2281, 3940, 4562, 7880, 9124, 11405, 18248, 22810, 45620, 91240, 449357, 898714, 1797428, 2246785, 3594856, 4493570, 8987140, 17974280]

約数ペア:

[(1, 17974280), (2, 8987140), (4, 4493570), (5, 3594856), (8, 2246785), (10, 1797428), (20, 898714), (40, 449357), (197, 91240), (394, 45620), (788, 22810), (985, 18248), (1576, 11405), (1970, 9124), (2281, 7880), (3940, 4562)]