40281640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{491}}^1$

素因数の和:802

約数の個数: 64

約数和(自身を含む): 104146560

約数和(自身を除く): 63864920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 293, 491, 586, 982, 1172, 1465, 1964, 2051, 2344, 2455, 2930, 3437, 3928, 4102, 4910, 5860, 6874, 8204, 9820, 10255, 11720, 13748, 16408, 17185, 19640, 20510, 27496, 34370, 41020, 68740, 82040, 137480, 143863, 287726, 575452, 719315, 1007041, 1150904, 1438630, 2014082, 2877260, 4028164, 5035205, 5754520, 8056328, 10070410, 20140820, 40281640]

約数ペア:

[(1, 40281640), (2, 20140820), (4, 10070410), (5, 8056328), (7, 5754520), (8, 5035205), (10, 4028164), (14, 2877260), (20, 2014082), (28, 1438630), (35, 1150904), (40, 1007041), (56, 719315), (70, 575452), (140, 287726), (280, 143863), (293, 137480), (491, 82040), (586, 68740), (982, 41020), (1172, 34370), (1465, 27496), (1964, 20510), (2051, 19640), (2344, 17185), (2455, 16408), (2930, 13748), (3437, 11720), (3928, 10255), (4102, 9820), (4910, 8204), (5860, 6874)]