7987720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15361}}^1$

素因数の和:15385

約数の個数: 32

約数和(自身を含む): 19356120

約数和(自身を除く): 11368400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 15361, 30722, 61444, 76805, 122888, 153610, 199693, 307220, 399386, 614440, 798772, 998465, 1597544, 1996930, 3993860, 7987720]

約数ペア:

[(1, 7987720), (2, 3993860), (4, 1996930), (5, 1597544), (8, 998465), (10, 798772), (13, 614440), (20, 399386), (26, 307220), (40, 199693), (52, 153610), (65, 122888), (104, 76805), (130, 61444), (260, 30722), (520, 15361)]