19491040

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2833}}^1$

素因数の和:2891

約数の個数: 48

約数和(自身を含む): 47135088

約数和(自身を除く): 27644048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 2833, 3440, 5666, 6880, 11332, 14165, 22664, 28330, 45328, 56660, 90656, 113320, 121819, 226640, 243638, 453280, 487276, 609095, 974552, 1218190, 1949104, 2436380, 3898208, 4872760, 9745520, 19491040]

約数ペア:

[(1, 19491040), (2, 9745520), (4, 4872760), (5, 3898208), (8, 2436380), (10, 1949104), (16, 1218190), (20, 974552), (32, 609095), (40, 487276), (43, 453280), (80, 243638), (86, 226640), (160, 121819), (172, 113320), (215, 90656), (344, 56660), (430, 45328), (688, 28330), (860, 22664), (1376, 14165), (1720, 11332), (2833, 6880), (3440, 5666)]