28898870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2887}}^1$

素因数の和:2925

約数の個数: 64

約数和(自身を含む): 69866496

約数和(自身を除く): 40967626

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 286, 385, 455, 715, 770, 910, 1001, 1430, 2002, 2887, 5005, 5774, 10010, 14435, 20209, 28870, 31757, 37531, 40418, 63514, 75062, 101045, 158785, 187655, 202090, 222299, 262717, 317570, 375310, 412841, 444598, 525434, 825682, 1111495, 1313585, 2064205, 2222990, 2627170, 2889887, 4128410, 5779774, 14449435, 28898870]

約数ペア:

[(1, 28898870), (2, 14449435), (5, 5779774), (7, 4128410), (10, 2889887), (11, 2627170), (13, 2222990), (14, 2064205), (22, 1313585), (26, 1111495), (35, 825682), (55, 525434), (65, 444598), (70, 412841), (77, 375310), (91, 317570), (110, 262717), (130, 222299), (143, 202090), (154, 187655), (182, 158785), (286, 101045), (385, 75062), (455, 63514), (715, 40418), (770, 37531), (910, 31757), (1001, 28870), (1430, 20209), (2002, 14435), (2887, 10010), (5005, 5774)]