1288530260

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{6269}}^1$

素因数の和:6560

約数の個数: 48

約数和(自身を含む): 2780870400

約数和(自身を除く): 1492340140

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 239, 430, 478, 860, 956, 1195, 2390, 4780, 6269, 10277, 12538, 20554, 25076, 31345, 41108, 51385, 62690, 102770, 125380, 205540, 269567, 539134, 1078268, 1347835, 1498291, 2695670, 2996582, 5391340, 5993164, 7491455, 14982910, 29965820, 64426513, 128853026, 257706052, 322132565, 644265130, 1288530260]

約数ペア:

[(1, 1288530260), (2, 644265130), (4, 322132565), (5, 257706052), (10, 128853026), (20, 64426513), (43, 29965820), (86, 14982910), (172, 7491455), (215, 5993164), (239, 5391340), (430, 2996582), (478, 2695670), (860, 1498291), (956, 1347835), (1195, 1078268), (2390, 539134), (4780, 269567), (6269, 205540), (10277, 125380), (12538, 102770), (20554, 62690), (25076, 51385), (31345, 41108)]