28507325

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 16489795

約数列:

[1, 5, 7, 11, 25, 35, 55, 59, 77, 175, 251, 275, 295, 385, 413, 649, 1255, 1475, 1757, 1925, 2065, 2761, 3245, 4543, 6275, 8785, 10325, 13805, 14809, 16225, 19327, 22715, 43925, 69025, 74045, 96635, 103663, 113575, 162899, 370225, 483175, 518315, 814495, 1140293, 2591575, 4072475, 5701465, 28507325]

約数ペア:

[(1, 28507325), (5, 5701465), (7, 4072475), (11, 2591575), (25, 1140293), (35, 814495), (55, 518315), (59, 483175), (77, 370225), (175, 162899), (251, 113575), (275, 103663), (295, 96635), (385, 74045), (413, 69025), (649, 43925), (1255, 22715), (1475, 19327), (1757, 16225), (1925, 14809), (2065, 13805), (2761, 10325), (3245, 8785), (4543, 6275)]