81311672

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{4051}}^1$

素因数の和:4263

約数の個数: 32

約数和(自身を含む): 165078480

約数和(自身を除く): 83766808

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 193, 386, 772, 1544, 2509, 4051, 5018, 8102, 10036, 16204, 20072, 32408, 52663, 105326, 210652, 421304, 781843, 1563686, 3127372, 6254744, 10163959, 20327918, 40655836, 81311672]

約数ペア:

[(1, 81311672), (2, 40655836), (4, 20327918), (8, 10163959), (13, 6254744), (26, 3127372), (52, 1563686), (104, 781843), (193, 421304), (386, 210652), (772, 105326), (1544, 52663), (2509, 32408), (4051, 20072), (5018, 16204), (8102, 10036)]