25704560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{233}}^1$

素因数の和:450

約数の個数: 80

約数和(自身を含む): 68942016

約数和(自身を除く): 43237456

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 233, 280, 394, 466, 560, 788, 932, 985, 1165, 1379, 1576, 1631, 1864, 1970, 2330, 2758, 3152, 3262, 3728, 3940, 4660, 5516, 6524, 6895, 7880, 8155, 9320, 11032, 13048, 13790, 15760, 16310, 18640, 22064, 26096, 27580, 32620, 45901, 55160, 65240, 91802, 110320, 130480, 183604, 229505, 321307, 367208, 459010, 642614, 734416, 918020, 1285228, 1606535, 1836040, 2570456, 3213070, 3672080, 5140912, 6426140, 12852280, 25704560]

約数ペア:

[(1, 25704560), (2, 12852280), (4, 6426140), (5, 5140912), (7, 3672080), (8, 3213070), (10, 2570456), (14, 1836040), (16, 1606535), (20, 1285228), (28, 918020), (35, 734416), (40, 642614), (56, 459010), (70, 367208), (80, 321307), (112, 229505), (140, 183604), (197, 130480), (233, 110320), (280, 91802), (394, 65240), (466, 55160), (560, 45901), (788, 32620), (932, 27580), (985, 26096), (1165, 22064), (1379, 18640), (1576, 16310), (1631, 15760), (1864, 13790), (1970, 13048), (2330, 11032), (2758, 9320), (3152, 8155), (3262, 7880), (3728, 6895), (3940, 6524), (4660, 5516)]