7798984880

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{367}}^1\times {\mathrm{2437}}^1$

素因数の和:2926

約数の個数: 80

約数和(自身を含む): 18356384640

約数和(自身を除く): 10557399760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 367, 436, 545, 734, 872, 1090, 1468, 1744, 1835, 2180, 2437, 2936, 3670, 4360, 4874, 5872, 7340, 8720, 9748, 12185, 14680, 19496, 24370, 29360, 38992, 40003, 48740, 80006, 97480, 160012, 194960, 200015, 265633, 320024, 400030, 531266, 640048, 800060, 894379, 1062532, 1328165, 1600120, 1788758, 2125064, 2656330, 3200240, 3577516, 4250128, 4471895, 5312660, 7155032, 8943790, 10625320, 14310064, 17887580, 21250640, 35775160, 71550320, 97487311, 194974622, 389949244, 487436555, 779898488, 974873110, 1559796976, 1949746220, 3899492440, 7798984880]

約数ペア:

[(1, 7798984880), (2, 3899492440), (4, 1949746220), (5, 1559796976), (8, 974873110), (10, 779898488), (16, 487436555), (20, 389949244), (40, 194974622), (80, 97487311), (109, 71550320), (218, 35775160), (367, 21250640), (436, 17887580), (545, 14310064), (734, 10625320), (872, 8943790), (1090, 7155032), (1468, 5312660), (1744, 4471895), (1835, 4250128), (2180, 3577516), (2437, 3200240), (2936, 2656330), (3670, 2125064), (4360, 1788758), (4874, 1600120), (5872, 1328165), (7340, 1062532), (8720, 894379), (9748, 800060), (12185, 640048), (14680, 531266), (19496, 400030), (24370, 320024), (29360, 265633), (38992, 200015), (40003, 194960), (48740, 160012), (80006, 97480)]