20744864

素因数分解:

$2^5\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2503}}^1$

素因数の和:2557

約数の個数: 48

約数和(自身を含む): 47956608

約数和(自身を除く): 27211744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 74, 112, 148, 224, 259, 296, 518, 592, 1036, 1184, 2072, 2503, 4144, 5006, 8288, 10012, 17521, 20024, 35042, 40048, 70084, 80096, 92611, 140168, 185222, 280336, 370444, 560672, 648277, 740888, 1296554, 1481776, 2593108, 2963552, 5186216, 10372432, 20744864]

約数ペア:

[(1, 20744864), (2, 10372432), (4, 5186216), (7, 2963552), (8, 2593108), (14, 1481776), (16, 1296554), (28, 740888), (32, 648277), (37, 560672), (56, 370444), (74, 280336), (112, 185222), (148, 140168), (224, 92611), (259, 80096), (296, 70084), (518, 40048), (592, 35042), (1036, 20024), (1184, 17521), (2072, 10012), (2503, 8288), (4144, 5006)]