79940840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{3911}}^1$

素因数の和:4002

約数の個数: 64

約数和(自身を含む): 208431360

約数和(自身を除く): 128490520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2920, 3911, 4088, 5110, 7822, 10220, 15644, 19555, 20440, 27377, 31288, 39110, 54754, 78220, 109508, 136885, 156440, 219016, 273770, 285503, 547540, 571006, 1095080, 1142012, 1427515, 1998521, 2284024, 2855030, 3997042, 5710060, 7994084, 9992605, 11420120, 15988168, 19985210, 39970420, 79940840]

約数ペア:

[(1, 79940840), (2, 39970420), (4, 19985210), (5, 15988168), (7, 11420120), (8, 9992605), (10, 7994084), (14, 5710060), (20, 3997042), (28, 2855030), (35, 2284024), (40, 1998521), (56, 1427515), (70, 1142012), (73, 1095080), (140, 571006), (146, 547540), (280, 285503), (292, 273770), (365, 219016), (511, 156440), (584, 136885), (730, 109508), (1022, 78220), (1460, 54754), (2044, 39110), (2555, 31288), (2920, 27377), (3911, 20440), (4088, 19555), (5110, 15644), (7822, 10220)]