81661560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{14479}}^1$

素因数の和:14540

約数の個数: 64

約数和(自身を含む): 250214400

約数和(自身を除く): 168552840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820, 5640, 14479, 28958, 43437, 57916, 72395, 86874, 115832, 144790, 173748, 217185, 289580, 347496, 434370, 579160, 680513, 868740, 1361026, 1737480, 2041539, 2722052, 3402565, 4083078, 5444104, 6805130, 8166156, 10207695, 13610260, 16332312, 20415390, 27220520, 40830780, 81661560]

約数ペア:

[(1, 81661560), (2, 40830780), (3, 27220520), (4, 20415390), (5, 16332312), (6, 13610260), (8, 10207695), (10, 8166156), (12, 6805130), (15, 5444104), (20, 4083078), (24, 3402565), (30, 2722052), (40, 2041539), (47, 1737480), (60, 1361026), (94, 868740), (120, 680513), (141, 579160), (188, 434370), (235, 347496), (282, 289580), (376, 217185), (470, 173748), (564, 144790), (705, 115832), (940, 86874), (1128, 72395), (1410, 57916), (1880, 43437), (2820, 28958), (5640, 14479)]