131307820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{25349}}^1$

素因数の和:25402

約数の個数: 48

約数和(自身を含む): 323668800

約数和(自身を除く): 192360980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 25349, 50698, 101396, 126745, 177443, 253490, 354886, 506980, 709772, 887215, 937913, 1774430, 1875826, 3548860, 3751652, 4689565, 6565391, 9379130, 13130782, 18758260, 26261564, 32826955, 65653910, 131307820]

約数ペア:

[(1, 131307820), (2, 65653910), (4, 32826955), (5, 26261564), (7, 18758260), (10, 13130782), (14, 9379130), (20, 6565391), (28, 4689565), (35, 3751652), (37, 3548860), (70, 1875826), (74, 1774430), (140, 937913), (148, 887215), (185, 709772), (259, 506980), (370, 354886), (518, 253490), (740, 177443), (1036, 126745), (1295, 101396), (2590, 50698), (5180, 25349)]