78857240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{25603}}^1$

素因数の和:25632

約数の個数: 64

約数和(自身を含む): 221218560

約数和(自身を除く): 142361320

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, 25603, 51206, 102412, 128015, 179221, 204824, 256030, 281633, 358442, 512060, 563266, 716884, 896105, 1024120, 1126532, 1408165, 1433768, 1792210, 1971431, 2253064, 2816330, 3584420, 3942862, 5632660, 7168840, 7885724, 9857155, 11265320, 15771448, 19714310, 39428620, 78857240]

約数ペア:

[(1, 78857240), (2, 39428620), (4, 19714310), (5, 15771448), (7, 11265320), (8, 9857155), (10, 7885724), (11, 7168840), (14, 5632660), (20, 3942862), (22, 3584420), (28, 2816330), (35, 2253064), (40, 1971431), (44, 1792210), (55, 1433768), (56, 1408165), (70, 1126532), (77, 1024120), (88, 896105), (110, 716884), (140, 563266), (154, 512060), (220, 358442), (280, 281633), (308, 256030), (385, 204824), (440, 179221), (616, 128015), (770, 102412), (1540, 51206), (3080, 25603)]