20431040

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{1303}}^1$

素因数の和:1334

約数の個数: 84

約数和(自身を含む): 56637936

約数和(自身を除く): 36206896

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1303, 1568, 1960, 2240, 2606, 3136, 3920, 5212, 6515, 7840, 9121, 10424, 13030, 15680, 18242, 20848, 26060, 36484, 41696, 45605, 52120, 63847, 72968, 83392, 91210, 104240, 127694, 145936, 182420, 208480, 255388, 291872, 319235, 364840, 416960, 510776, 583744, 638470, 729680, 1021552, 1276940, 1459360, 2043104, 2553880, 2918720, 4086208, 5107760, 10215520, 20431040]

約数ペア:

[(1, 20431040), (2, 10215520), (4, 5107760), (5, 4086208), (7, 2918720), (8, 2553880), (10, 2043104), (14, 1459360), (16, 1276940), (20, 1021552), (28, 729680), (32, 638470), (35, 583744), (40, 510776), (49, 416960), (56, 364840), (64, 319235), (70, 291872), (80, 255388), (98, 208480), (112, 182420), (140, 145936), (160, 127694), (196, 104240), (224, 91210), (245, 83392), (280, 72968), (320, 63847), (392, 52120), (448, 45605), (490, 41696), (560, 36484), (784, 26060), (980, 20848), (1120, 18242), (1303, 15680), (1568, 13030), (1960, 10424), (2240, 9121), (2606, 7840), (3136, 6515), (3920, 5212)]