53390440

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{2063}}^1$

素因数の和:2721

約数の個数: 32

約数和(自身を含む): 120372480

約数和(自身を除く): 66982040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2063, 2588, 3235, 4126, 5176, 6470, 8252, 10315, 12940, 16504, 20630, 25880, 41260, 82520, 1334761, 2669522, 5339044, 6673805, 10678088, 13347610, 26695220, 53390440]

約数ペア:

[(1, 53390440), (2, 26695220), (4, 13347610), (5, 10678088), (8, 6673805), (10, 5339044), (20, 2669522), (40, 1334761), (647, 82520), (1294, 41260), (2063, 25880), (2588, 20630), (3235, 16504), (4126, 12940), (5176, 10315), (6470, 8252)]