7217320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 18144000

約数和(自身を除く): 10926680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 349, 376, 440, 470, 517, 698, 940, 1034, 1396, 1745, 1880, 2068, 2585, 2792, 3490, 3839, 4136, 5170, 6980, 7678, 10340, 13960, 15356, 16403, 19195, 20680, 30712, 32806, 38390, 65612, 76780, 82015, 131224, 153560, 164030, 180433, 328060, 360866, 656120, 721732, 902165, 1443464, 1804330, 3608660, 7217320]

約数ペア:

[(1, 7217320), (2, 3608660), (4, 1804330), (5, 1443464), (8, 902165), (10, 721732), (11, 656120), (20, 360866), (22, 328060), (40, 180433), (44, 164030), (47, 153560), (55, 131224), (88, 82015), (94, 76780), (110, 65612), (188, 38390), (220, 32806), (235, 30712), (349, 20680), (376, 19195), (440, 16403), (470, 15356), (517, 13960), (698, 10340), (940, 7678), (1034, 6980), (1396, 5170), (1745, 4136), (1880, 3839), (2068, 3490), (2585, 2792)]