31699720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{60961}}^1$

素因数の和:60985

約数の個数: 32

約数和(自身を含む): 76812120

約数和(自身を除く): 45112400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 60961, 121922, 243844, 304805, 487688, 609610, 792493, 1219220, 1584986, 2438440, 3169972, 3962465, 6339944, 7924930, 15849860, 31699720]

約数ペア:

[(1, 31699720), (2, 15849860), (4, 7924930), (5, 6339944), (8, 3962465), (10, 3169972), (13, 2438440), (20, 1584986), (26, 1219220), (40, 792493), (52, 609610), (65, 487688), (104, 304805), (130, 243844), (260, 121922), (520, 60961)]