7981480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15349}}^1$

素因数の和:15373

約数の個数: 32

約数和(自身を含む): 19341000

約数和(自身を除く): 11359520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 15349, 30698, 61396, 76745, 122792, 153490, 199537, 306980, 399074, 613960, 798148, 997685, 1596296, 1995370, 3990740, 7981480]

約数ペア:

[(1, 7981480), (2, 3990740), (4, 1995370), (5, 1596296), (8, 997685), (10, 798148), (13, 613960), (20, 399074), (26, 306980), (40, 199537), (52, 153490), (65, 122792), (104, 76745), (130, 61396), (260, 30698), (520, 15349)]