12857320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{977}}^1$

素因数の和:1042

約数の個数: 64

約数和(自身を含む): 33799680

約数和(自身を除く): 20942360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 235, 280, 329, 376, 470, 658, 940, 977, 1316, 1645, 1880, 1954, 2632, 3290, 3908, 4885, 6580, 6839, 7816, 9770, 13160, 13678, 19540, 27356, 34195, 39080, 45919, 54712, 68390, 91838, 136780, 183676, 229595, 273560, 321433, 367352, 459190, 642866, 918380, 1285732, 1607165, 1836760, 2571464, 3214330, 6428660, 12857320]

約数ペア:

[(1, 12857320), (2, 6428660), (4, 3214330), (5, 2571464), (7, 1836760), (8, 1607165), (10, 1285732), (14, 918380), (20, 642866), (28, 459190), (35, 367352), (40, 321433), (47, 273560), (56, 229595), (70, 183676), (94, 136780), (140, 91838), (188, 68390), (235, 54712), (280, 45919), (329, 39080), (376, 34195), (470, 27356), (658, 19540), (940, 13678), (977, 13160), (1316, 9770), (1645, 7816), (1880, 6839), (1954, 6580), (2632, 4885), (3290, 3908)]