81446260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{5437}}^1$

素因数の和:5560

約数の個数: 48

約数和(自身を含む): 197334144

約数和(自身を除く): 115887884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 107, 140, 214, 428, 535, 749, 1070, 1498, 2140, 2996, 3745, 5437, 7490, 10874, 14980, 21748, 27185, 38059, 54370, 76118, 108740, 152236, 190295, 380590, 581759, 761180, 1163518, 2327036, 2908795, 4072313, 5817590, 8144626, 11635180, 16289252, 20361565, 40723130, 81446260]

約数ペア:

[(1, 81446260), (2, 40723130), (4, 20361565), (5, 16289252), (7, 11635180), (10, 8144626), (14, 5817590), (20, 4072313), (28, 2908795), (35, 2327036), (70, 1163518), (107, 761180), (140, 581759), (214, 380590), (428, 190295), (535, 152236), (749, 108740), (1070, 76118), (1498, 54370), (2140, 38059), (2996, 27185), (3745, 21748), (5437, 14980), (7490, 10874)]