80915560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1063}}^1$

素因数の和:1258

約数の個数: 64

約数和(自身を含む): 199946880

約数和(自身を除く): 119031320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 173, 220, 346, 440, 692, 865, 1063, 1384, 1730, 1903, 2126, 3460, 3806, 4252, 5315, 6920, 7612, 8504, 9515, 10630, 11693, 15224, 19030, 21260, 23386, 38060, 42520, 46772, 58465, 76120, 93544, 116930, 183899, 233860, 367798, 467720, 735596, 919495, 1471192, 1838990, 2022889, 3677980, 4045778, 7355960, 8091556, 10114445, 16183112, 20228890, 40457780, 80915560]

約数ペア:

[(1, 80915560), (2, 40457780), (4, 20228890), (5, 16183112), (8, 10114445), (10, 8091556), (11, 7355960), (20, 4045778), (22, 3677980), (40, 2022889), (44, 1838990), (55, 1471192), (88, 919495), (110, 735596), (173, 467720), (220, 367798), (346, 233860), (440, 183899), (692, 116930), (865, 93544), (1063, 76120), (1384, 58465), (1730, 46772), (1903, 42520), (2126, 38060), (3460, 23386), (3806, 21260), (4252, 19030), (5315, 15224), (6920, 11693), (7612, 10630), (8504, 9515)]