123225560

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^2\times {\mathrm{191}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 280920960

約数和(自身を除く): 157695400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 191, 254, 382, 508, 635, 764, 955, 1016, 1270, 1528, 1910, 2540, 3820, 5080, 7640, 16129, 24257, 32258, 48514, 64516, 80645, 97028, 121285, 129032, 161290, 194056, 242570, 322580, 485140, 645160, 970280, 3080639, 6161278, 12322556, 15403195, 24645112, 30806390, 61612780, 123225560]

約数ペア:

[(1, 123225560), (2, 61612780), (4, 30806390), (5, 24645112), (8, 15403195), (10, 12322556), (20, 6161278), (40, 3080639), (127, 970280), (191, 645160), (254, 485140), (382, 322580), (508, 242570), (635, 194056), (764, 161290), (955, 129032), (1016, 121285), (1270, 97028), (1528, 80645), (1910, 64516), (2540, 48514), (3820, 32258), (5080, 24257), (7640, 16129)]