25651880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 60410880

約数和(自身を除く): 34759000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 137, 151, 155, 248, 274, 302, 310, 548, 604, 620, 685, 755, 1096, 1208, 1240, 1370, 1510, 2740, 3020, 4247, 4681, 5480, 6040, 8494, 9362, 16988, 18724, 20687, 21235, 23405, 33976, 37448, 41374, 42470, 46810, 82748, 84940, 93620, 103435, 165496, 169880, 187240, 206870, 413740, 641297, 827480, 1282594, 2565188, 3206485, 5130376, 6412970, 12825940, 25651880]

約数ペア:

[(1, 25651880), (2, 12825940), (4, 6412970), (5, 5130376), (8, 3206485), (10, 2565188), (20, 1282594), (31, 827480), (40, 641297), (62, 413740), (124, 206870), (137, 187240), (151, 169880), (155, 165496), (248, 103435), (274, 93620), (302, 84940), (310, 82748), (548, 46810), (604, 42470), (620, 41374), (685, 37448), (755, 33976), (1096, 23405), (1208, 21235), (1240, 20687), (1370, 18724), (1510, 16988), (2740, 9362), (3020, 8494), (4247, 6040), (4681, 5480)]