81909213904

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{145423}}^1$

素因数の和:145592

約数の個数: 80

約数和(自身を含む): 186961747968

約数和(自身を除く): 105052534064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 107, 112, 188, 214, 329, 376, 428, 658, 749, 752, 856, 1316, 1498, 1712, 2632, 2996, 5029, 5264, 5992, 10058, 11984, 20116, 35203, 40232, 70406, 80464, 140812, 145423, 281624, 290846, 563248, 581692, 1017961, 1163384, 2035922, 2326768, 4071844, 6834881, 8143688, 13669762, 15560261, 16287376, 27339524, 31120522, 47844167, 54679048, 62241044, 95688334, 108921827, 109358096, 124482088, 191376668, 217843654, 248964176, 382753336, 435687308, 731332267, 765506672, 871374616, 1462664534, 1742749232, 2925329068, 5119325869, 5850658136, 10238651738, 11701316272, 20477303476, 40954606952, 81909213904]

約数ペア:

[(1, 81909213904), (2, 40954606952), (4, 20477303476), (7, 11701316272), (8, 10238651738), (14, 5850658136), (16, 5119325869), (28, 2925329068), (47, 1742749232), (56, 1462664534), (94, 871374616), (107, 765506672), (112, 731332267), (188, 435687308), (214, 382753336), (329, 248964176), (376, 217843654), (428, 191376668), (658, 124482088), (749, 109358096), (752, 108921827), (856, 95688334), (1316, 62241044), (1498, 54679048), (1712, 47844167), (2632, 31120522), (2996, 27339524), (5029, 16287376), (5264, 15560261), (5992, 13669762), (10058, 8143688), (11984, 6834881), (20116, 4071844), (35203, 2326768), (40232, 2035922), (70406, 1163384), (80464, 1017961), (140812, 581692), (145423, 563248), (281624, 290846)]