17890040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{353}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 46388160

約数和(自身を除く): 28498120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 280, 353, 362, 706, 724, 905, 1267, 1412, 1448, 1765, 1810, 2471, 2534, 2824, 3530, 3620, 4942, 5068, 6335, 7060, 7240, 9884, 10136, 12355, 12670, 14120, 19768, 24710, 25340, 49420, 50680, 63893, 98840, 127786, 255572, 319465, 447251, 511144, 638930, 894502, 1277860, 1789004, 2236255, 2555720, 3578008, 4472510, 8945020, 17890040]

約数ペア:

[(1, 17890040), (2, 8945020), (4, 4472510), (5, 3578008), (7, 2555720), (8, 2236255), (10, 1789004), (14, 1277860), (20, 894502), (28, 638930), (35, 511144), (40, 447251), (56, 319465), (70, 255572), (140, 127786), (181, 98840), (280, 63893), (353, 50680), (362, 49420), (706, 25340), (724, 24710), (905, 19768), (1267, 14120), (1412, 12670), (1448, 12355), (1765, 10136), (1810, 9884), (2471, 7240), (2534, 7060), (2824, 6335), (3530, 5068), (3620, 4942)]