78808905

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{347}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 160909632

約数和(自身を除く): 82100727

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 103, 105, 147, 245, 309, 315, 347, 441, 515, 721, 735, 927, 1041, 1545, 1735, 2163, 2205, 2429, 3123, 3605, 4635, 5047, 5205, 6489, 7287, 10815, 12145, 15141, 15615, 17003, 21861, 25235, 32445, 35741, 36435, 45423, 51009, 75705, 85015, 107223, 109305, 153027, 178705, 227115, 250187, 255045, 321669, 536115, 750561, 765135, 1250935, 1608345, 1751309, 2251683, 3752805, 5253927, 8756545, 11258415, 15761781, 26269635, 78808905]

約数ペア:

[(1, 78808905), (3, 26269635), (5, 15761781), (7, 11258415), (9, 8756545), (15, 5253927), (21, 3752805), (35, 2251683), (45, 1751309), (49, 1608345), (63, 1250935), (103, 765135), (105, 750561), (147, 536115), (245, 321669), (309, 255045), (315, 250187), (347, 227115), (441, 178705), (515, 153027), (721, 109305), (735, 107223), (927, 85015), (1041, 75705), (1545, 51009), (1735, 45423), (2163, 36435), (2205, 35741), (2429, 32445), (3123, 25235), (3605, 21861), (4635, 17003), (5047, 15615), (5205, 15141), (6489, 12145), (7287, 10815)]