12521320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{227}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 32503680

約数和(自身を除く): 19982360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 227, 280, 394, 454, 788, 908, 985, 1135, 1379, 1576, 1589, 1816, 1970, 2270, 2758, 3178, 3940, 4540, 5516, 6356, 6895, 7880, 7945, 9080, 11032, 12712, 13790, 15890, 27580, 31780, 44719, 55160, 63560, 89438, 178876, 223595, 313033, 357752, 447190, 626066, 894380, 1252132, 1565165, 1788760, 2504264, 3130330, 6260660, 12521320]

約数ペア:

[(1, 12521320), (2, 6260660), (4, 3130330), (5, 2504264), (7, 1788760), (8, 1565165), (10, 1252132), (14, 894380), (20, 626066), (28, 447190), (35, 357752), (40, 313033), (56, 223595), (70, 178876), (140, 89438), (197, 63560), (227, 55160), (280, 44719), (394, 31780), (454, 27580), (788, 15890), (908, 13790), (985, 12712), (1135, 11032), (1379, 9080), (1576, 7945), (1589, 7880), (1816, 6895), (1970, 6356), (2270, 5516), (2758, 4540), (3178, 3940)]