127823960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{290509}}^1$

素因数の和:290531

約数の個数: 32

約数和(自身を含む): 313750800

約数和(自身を除く): 185926840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 290509, 581018, 1162036, 1452545, 2324072, 2905090, 3195599, 5810180, 6391198, 11620360, 12782396, 15977995, 25564792, 31955990, 63911980, 127823960]

約数ペア:

[(1, 127823960), (2, 63911980), (4, 31955990), (5, 25564792), (8, 15977995), (10, 12782396), (11, 11620360), (20, 6391198), (22, 5810180), (40, 3195599), (44, 2905090), (55, 2324072), (88, 1452545), (110, 1162036), (220, 581018), (440, 290509)]