8312720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7993}}^1$

素因数の和:8019

約数の個数: 40

約数和(自身を含む): 20816376

約数和(自身を除く): 12503656

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 7993, 15986, 31972, 39965, 63944, 79930, 103909, 127888, 159860, 207818, 319720, 415636, 519545, 639440, 831272, 1039090, 1662544, 2078180, 4156360, 8312720]

約数ペア:

[(1, 8312720), (2, 4156360), (4, 2078180), (5, 1662544), (8, 1039090), (10, 831272), (13, 639440), (16, 519545), (20, 415636), (26, 319720), (40, 207818), (52, 159860), (65, 127888), (80, 103909), (104, 79930), (130, 63944), (208, 39965), (260, 31972), (520, 15986), (1040, 7993)]