87808220

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{857}}^1$

素因数の和:1022

約数の個数: 48

約数和(自身を含む): 190270080

約数和(自身を除く): 102461860

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 109, 188, 218, 235, 436, 470, 545, 857, 940, 1090, 1714, 2180, 3428, 4285, 5123, 8570, 10246, 17140, 20492, 25615, 40279, 51230, 80558, 93413, 102460, 161116, 186826, 201395, 373652, 402790, 467065, 805580, 934130, 1868260, 4390411, 8780822, 17561644, 21952055, 43904110, 87808220]

約数ペア:

[(1, 87808220), (2, 43904110), (4, 21952055), (5, 17561644), (10, 8780822), (20, 4390411), (47, 1868260), (94, 934130), (109, 805580), (188, 467065), (218, 402790), (235, 373652), (436, 201395), (470, 186826), (545, 161116), (857, 102460), (940, 93413), (1090, 80558), (1714, 51230), (2180, 40279), (3428, 25615), (4285, 20492), (5123, 17140), (8570, 10246)]