25042640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{227}}^1$

素因数の和:444

約数の個数: 80

約数和(自身を含む): 67174272

約数和(自身を除く): 42131632

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 227, 280, 394, 454, 560, 788, 908, 985, 1135, 1379, 1576, 1589, 1816, 1970, 2270, 2758, 3152, 3178, 3632, 3940, 4540, 5516, 6356, 6895, 7880, 7945, 9080, 11032, 12712, 13790, 15760, 15890, 18160, 22064, 25424, 27580, 31780, 44719, 55160, 63560, 89438, 110320, 127120, 178876, 223595, 313033, 357752, 447190, 626066, 715504, 894380, 1252132, 1565165, 1788760, 2504264, 3130330, 3577520, 5008528, 6260660, 12521320, 25042640]

約数ペア:

[(1, 25042640), (2, 12521320), (4, 6260660), (5, 5008528), (7, 3577520), (8, 3130330), (10, 2504264), (14, 1788760), (16, 1565165), (20, 1252132), (28, 894380), (35, 715504), (40, 626066), (56, 447190), (70, 357752), (80, 313033), (112, 223595), (140, 178876), (197, 127120), (227, 110320), (280, 89438), (394, 63560), (454, 55160), (560, 44719), (788, 31780), (908, 27580), (985, 25424), (1135, 22064), (1379, 18160), (1576, 15890), (1589, 15760), (1816, 13790), (1970, 12712), (2270, 11032), (2758, 9080), (3152, 7945), (3178, 7880), (3632, 6895), (3940, 6356), (4540, 5516)]