81591650816

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{395431}}^1$

素因数の和:395493

約数の個数: 80

約数和(自身を含む): 181228067328

約数和(自身を除く): 99636416512

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 403, 416, 496, 512, 806, 832, 992, 1612, 1664, 1984, 3224, 3328, 3968, 6448, 6656, 7936, 12896, 15872, 25792, 51584, 103168, 206336, 395431, 790862, 1581724, 3163448, 5140603, 6326896, 10281206, 12258361, 12653792, 20562412, 24516722, 25307584, 41124824, 49033444, 50615168, 82249648, 98066888, 101230336, 159358693, 164499296, 196133776, 202460672, 318717386, 328998592, 392267552, 637434772, 657997184, 784535104, 1274869544, 1315994368, 1569070208, 2549739088, 2631988736, 3138140416, 5099478176, 6276280832, 10198956352, 20397912704, 40795825408, 81591650816]

約数ペア:

[(1, 81591650816), (2, 40795825408), (4, 20397912704), (8, 10198956352), (13, 6276280832), (16, 5099478176), (26, 3138140416), (31, 2631988736), (32, 2549739088), (52, 1569070208), (62, 1315994368), (64, 1274869544), (104, 784535104), (124, 657997184), (128, 637434772), (208, 392267552), (248, 328998592), (256, 318717386), (403, 202460672), (416, 196133776), (496, 164499296), (512, 159358693), (806, 101230336), (832, 98066888), (992, 82249648), (1612, 50615168), (1664, 49033444), (1984, 41124824), (3224, 25307584), (3328, 24516722), (3968, 20562412), (6448, 12653792), (6656, 12258361), (7936, 10281206), (12896, 6326896), (15872, 5140603), (25792, 3163448), (51584, 1581724), (103168, 790862), (206336, 395431)]