19816400

素因数分解:

$2^4\times 5^2\times {\mathrm{107}}^1\times {\mathrm{463}}^1$

素因数の和:588

約数の個数: 60

約数和(自身を含む): 48157632

約数和(自身を除く): 28341232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 107, 200, 214, 400, 428, 463, 535, 856, 926, 1070, 1712, 1852, 2140, 2315, 2675, 3704, 4280, 4630, 5350, 7408, 8560, 9260, 10700, 11575, 18520, 21400, 23150, 37040, 42800, 46300, 49541, 92600, 99082, 185200, 198164, 247705, 396328, 495410, 792656, 990820, 1238525, 1981640, 2477050, 3963280, 4954100, 9908200, 19816400]

約数ペア:

[(1, 19816400), (2, 9908200), (4, 4954100), (5, 3963280), (8, 2477050), (10, 1981640), (16, 1238525), (20, 990820), (25, 792656), (40, 495410), (50, 396328), (80, 247705), (100, 198164), (107, 185200), (200, 99082), (214, 92600), (400, 49541), (428, 46300), (463, 42800), (535, 37040), (856, 23150), (926, 21400), (1070, 18520), (1712, 11575), (1852, 10700), (2140, 9260), (2315, 8560), (2675, 7408), (3704, 5350), (4280, 4630)]