20837800

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2423}}^1$

素因数の和:2482

約数の個数: 48

約数和(自身を含む): 49595040

約数和(自身を除く): 28757240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 2423, 4300, 4846, 8600, 9692, 12115, 19384, 24230, 48460, 60575, 96920, 104189, 121150, 208378, 242300, 416756, 484600, 520945, 833512, 1041890, 2083780, 2604725, 4167560, 5209450, 10418900, 20837800]

約数ペア:

[(1, 20837800), (2, 10418900), (4, 5209450), (5, 4167560), (8, 2604725), (10, 2083780), (20, 1041890), (25, 833512), (40, 520945), (43, 484600), (50, 416756), (86, 242300), (100, 208378), (172, 121150), (200, 104189), (215, 96920), (344, 60575), (430, 48460), (860, 24230), (1075, 19384), (1720, 12115), (2150, 9692), (2423, 8600), (4300, 4846)]