65521280

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:298

約数の個数: 128

約数和(自身を含む): 175815360

約数和(自身を除く): 110294080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 64, 80, 82, 88, 110, 128, 160, 164, 176, 205, 220, 227, 320, 328, 352, 410, 440, 451, 454, 640, 656, 704, 820, 880, 902, 908, 1135, 1312, 1408, 1640, 1760, 1804, 1816, 2255, 2270, 2497, 2624, 3280, 3520, 3608, 3632, 4510, 4540, 4994, 5248, 6560, 7040, 7216, 7264, 9020, 9080, 9307, 9988, 12485, 13120, 14432, 14528, 18040, 18160, 18614, 19976, 24970, 26240, 28864, 29056, 36080, 36320, 37228, 39952, 46535, 49940, 57728, 72160, 72640, 74456, 79904, 93070, 99880, 102377, 144320, 145280, 148912, 159808, 186140, 199760, 204754, 288640, 297824, 319616, 372280, 399520, 409508, 511885, 595648, 744560, 799040, 819016, 1023770, 1191296, 1489120, 1598080, 1638032, 2047540, 2978240, 3276064, 4095080, 5956480, 6552128, 8190160, 13104256, 16380320, 32760640, 65521280]

約数ペア:

[(1, 65521280), (2, 32760640), (4, 16380320), (5, 13104256), (8, 8190160), (10, 6552128), (11, 5956480), (16, 4095080), (20, 3276064), (22, 2978240), (32, 2047540), (40, 1638032), (41, 1598080), (44, 1489120), (55, 1191296), (64, 1023770), (80, 819016), (82, 799040), (88, 744560), (110, 595648), (128, 511885), (160, 409508), (164, 399520), (176, 372280), (205, 319616), (220, 297824), (227, 288640), (320, 204754), (328, 199760), (352, 186140), (410, 159808), (440, 148912), (451, 145280), (454, 144320), (640, 102377), (656, 99880), (704, 93070), (820, 79904), (880, 74456), (902, 72640), (908, 72160), (1135, 57728), (1312, 49940), (1408, 46535), (1640, 39952), (1760, 37228), (1804, 36320), (1816, 36080), (2255, 29056), (2270, 28864), (2497, 26240), (2624, 24970), (3280, 19976), (3520, 18614), (3608, 18160), (3632, 18040), (4510, 14528), (4540, 14432), (4994, 13120), (5248, 12485), (6560, 9988), (7040, 9307), (7216, 9080), (7264, 9020)]