18259120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20749}}^1$

素因数の和:20773

約数の個数: 40

約数和(自身を含む): 46314000

約数和(自身を除く): 28054880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 20749, 41498, 82996, 103745, 165992, 207490, 228239, 331984, 414980, 456478, 829960, 912956, 1141195, 1659920, 1825912, 2282390, 3651824, 4564780, 9129560, 18259120]

約数ペア:

[(1, 18259120), (2, 9129560), (4, 4564780), (5, 3651824), (8, 2282390), (10, 1825912), (11, 1659920), (16, 1141195), (20, 912956), (22, 829960), (40, 456478), (44, 414980), (55, 331984), (80, 228239), (88, 207490), (110, 165992), (176, 103745), (220, 82996), (440, 41498), (880, 20749)]