31055080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{563}}^1$

素因数の和:778

約数の個数: 64

約数和(自身を含む): 80403840

約数和(自身を除く): 49348760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 394, 563, 788, 985, 1126, 1379, 1576, 1970, 2252, 2758, 2815, 3940, 3941, 4504, 5516, 5630, 6895, 7880, 7882, 11032, 11260, 13790, 15764, 19705, 22520, 27580, 31528, 39410, 55160, 78820, 110911, 157640, 221822, 443644, 554555, 776377, 887288, 1109110, 1552754, 2218220, 3105508, 3881885, 4436440, 6211016, 7763770, 15527540, 31055080]

約数ペア:

[(1, 31055080), (2, 15527540), (4, 7763770), (5, 6211016), (7, 4436440), (8, 3881885), (10, 3105508), (14, 2218220), (20, 1552754), (28, 1109110), (35, 887288), (40, 776377), (56, 554555), (70, 443644), (140, 221822), (197, 157640), (280, 110911), (394, 78820), (563, 55160), (788, 39410), (985, 31528), (1126, 27580), (1379, 22520), (1576, 19705), (1970, 15764), (2252, 13790), (2758, 11260), (2815, 11032), (3940, 7882), (3941, 7880), (4504, 6895), (5516, 5630)]