28302505

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 43972992

約数和(自身を除く): 15670487

約数列:

[1, 5, 7, 11, 35, 41, 55, 77, 121, 163, 205, 287, 385, 451, 605, 815, 847, 1141, 1435, 1793, 2255, 3157, 4235, 4961, 5705, 6683, 8965, 12551, 15785, 19723, 24805, 33415, 34727, 46781, 62755, 73513, 98615, 138061, 173635, 233905, 367565, 514591, 690305, 808643, 2572955, 4043215, 5660501, 28302505]

約数ペア:

[(1, 28302505), (5, 5660501), (7, 4043215), (11, 2572955), (35, 808643), (41, 690305), (55, 514591), (77, 367565), (121, 233905), (163, 173635), (205, 138061), (287, 98615), (385, 73513), (451, 62755), (605, 46781), (815, 34727), (847, 33415), (1141, 24805), (1435, 19723), (1793, 15785), (2255, 12551), (3157, 8965), (4235, 6683), (4961, 5705)]