263723120

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:498

約数の個数: 80

約数和(自身を含む): 626531328

約数和(自身を除く): 362808208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 127, 202, 254, 257, 404, 505, 508, 514, 635, 808, 1010, 1016, 1028, 1270, 1285, 1616, 2020, 2032, 2056, 2540, 2570, 4040, 4112, 5080, 5140, 8080, 10160, 10280, 12827, 20560, 25654, 25957, 32639, 51308, 51914, 64135, 65278, 102616, 103828, 128270, 129785, 130556, 163195, 205232, 207656, 256540, 259570, 261112, 326390, 415312, 513080, 519140, 522224, 652780, 1026160, 1038280, 1305560, 2076560, 2611120, 3296539, 6593078, 13186156, 16482695, 26372312, 32965390, 52744624, 65930780, 131861560, 263723120]

約数ペア:

[(1, 263723120), (2, 131861560), (4, 65930780), (5, 52744624), (8, 32965390), (10, 26372312), (16, 16482695), (20, 13186156), (40, 6593078), (80, 3296539), (101, 2611120), (127, 2076560), (202, 1305560), (254, 1038280), (257, 1026160), (404, 652780), (505, 522224), (508, 519140), (514, 513080), (635, 415312), (808, 326390), (1010, 261112), (1016, 259570), (1028, 256540), (1270, 207656), (1285, 205232), (1616, 163195), (2020, 130556), (2032, 129785), (2056, 128270), (2540, 103828), (2570, 102616), (4040, 65278), (4112, 64135), (5080, 51914), (5140, 51308), (8080, 32639), (10160, 25957), (10280, 25654), (12827, 20560)]