31331960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71209}}^1$

素因数の和:71231

約数の個数: 32

約数和(自身を含む): 76906800

約数和(自身を除く): 45574840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 71209, 142418, 284836, 356045, 569672, 712090, 783299, 1424180, 1566598, 2848360, 3133196, 3916495, 6266392, 7832990, 15665980, 31331960]

約数ペア:

[(1, 31331960), (2, 15665980), (4, 7832990), (5, 6266392), (8, 3916495), (10, 3133196), (11, 2848360), (20, 1566598), (22, 1424180), (40, 783299), (44, 712090), (55, 569672), (88, 356045), (110, 284836), (220, 142418), (440, 71209)]