81901600

素因数分解:

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

素因数の和:299

約数の個数: 144

約数和(自身を含む): 224423136

約数和(自身を除く): 142521536

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 41, 44, 50, 55, 80, 82, 88, 100, 110, 160, 164, 176, 200, 205, 220, 227, 275, 328, 352, 400, 410, 440, 451, 454, 550, 656, 800, 820, 880, 902, 908, 1025, 1100, 1135, 1312, 1640, 1760, 1804, 1816, 2050, 2200, 2255, 2270, 2497, 3280, 3608, 3632, 4100, 4400, 4510, 4540, 4994, 5675, 6560, 7216, 7264, 8200, 8800, 9020, 9080, 9307, 9988, 11275, 11350, 12485, 14432, 16400, 18040, 18160, 18614, 19976, 22550, 22700, 24970, 32800, 36080, 36320, 37228, 39952, 45100, 45400, 46535, 49940, 62425, 72160, 74456, 79904, 90200, 90800, 93070, 99880, 102377, 124850, 148912, 180400, 181600, 186140, 199760, 204754, 232675, 249700, 297824, 360800, 372280, 399520, 409508, 465350, 499400, 511885, 744560, 819016, 930700, 998800, 1023770, 1489120, 1638032, 1861400, 1997600, 2047540, 2559425, 3276064, 3722800, 4095080, 5118850, 7445600, 8190160, 10237700, 16380320, 20475400, 40950800, 81901600]

約数ペア:

[(1, 81901600), (2, 40950800), (4, 20475400), (5, 16380320), (8, 10237700), (10, 8190160), (11, 7445600), (16, 5118850), (20, 4095080), (22, 3722800), (25, 3276064), (32, 2559425), (40, 2047540), (41, 1997600), (44, 1861400), (50, 1638032), (55, 1489120), (80, 1023770), (82, 998800), (88, 930700), (100, 819016), (110, 744560), (160, 511885), (164, 499400), (176, 465350), (200, 409508), (205, 399520), (220, 372280), (227, 360800), (275, 297824), (328, 249700), (352, 232675), (400, 204754), (410, 199760), (440, 186140), (451, 181600), (454, 180400), (550, 148912), (656, 124850), (800, 102377), (820, 99880), (880, 93070), (902, 90800), (908, 90200), (1025, 79904), (1100, 74456), (1135, 72160), (1312, 62425), (1640, 49940), (1760, 46535), (1804, 45400), (1816, 45100), (2050, 39952), (2200, 37228), (2255, 36320), (2270, 36080), (2497, 32800), (3280, 24970), (3608, 22700), (3632, 22550), (4100, 19976), (4400, 18614), (4510, 18160), (4540, 18040), (4994, 16400), (5675, 14432), (6560, 12485), (7216, 11350), (7264, 11275), (8200, 9988), (8800, 9307), (9020, 9080)]