25228280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8191}}^1$

素因数の和:8220

約数の個数: 64

約数和(自身を含む): 70778880

約数和(自身を除く): 45550600

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 8191, 16382, 32764, 40955, 57337, 65528, 81910, 90101, 114674, 163820, 180202, 229348, 286685, 327640, 360404, 450505, 458696, 573370, 630707, 720808, 901010, 1146740, 1261414, 1802020, 2293480, 2522828, 3153535, 3604040, 5045656, 6307070, 12614140, 25228280]

約数ペア:

[(1, 25228280), (2, 12614140), (4, 6307070), (5, 5045656), (7, 3604040), (8, 3153535), (10, 2522828), (11, 2293480), (14, 1802020), (20, 1261414), (22, 1146740), (28, 901010), (35, 720808), (40, 630707), (44, 573370), (55, 458696), (56, 450505), (70, 360404), (77, 327640), (88, 286685), (110, 229348), (140, 180202), (154, 163820), (220, 114674), (280, 90101), (308, 81910), (385, 65528), (440, 57337), (616, 40955), (770, 32764), (1540, 16382), (3080, 8191)]