80364760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{12479}}^1$

素因数の和:12520

約数の個数: 64

約数和(自身を含む): 215654400

約数和(自身を除く): 135289640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 12479, 24958, 49916, 62395, 87353, 99832, 124790, 174706, 249580, 287017, 349412, 436765, 499160, 574034, 698824, 873530, 1148068, 1435085, 1747060, 2009119, 2296136, 2870170, 3494120, 4018238, 5740340, 8036476, 10045595, 11480680, 16072952, 20091190, 40182380, 80364760]

約数ペア:

[(1, 80364760), (2, 40182380), (4, 20091190), (5, 16072952), (7, 11480680), (8, 10045595), (10, 8036476), (14, 5740340), (20, 4018238), (23, 3494120), (28, 2870170), (35, 2296136), (40, 2009119), (46, 1747060), (56, 1435085), (70, 1148068), (92, 873530), (115, 698824), (140, 574034), (161, 499160), (184, 436765), (230, 349412), (280, 287017), (322, 249580), (460, 174706), (644, 124790), (805, 99832), (920, 87353), (1288, 62395), (1610, 49916), (3220, 24958), (6440, 12479)]