280231490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{51991}}^1$

素因数の和:52023

約数の個数: 48

約数和(自身を含む): 640125504

約数和(自身を除く): 359894014

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 5390, 51991, 103982, 259955, 363937, 519910, 571901, 727874, 1143802, 1819685, 2547559, 2859505, 3639370, 4003307, 5095118, 5719010, 8006614, 12737795, 20016535, 25475590, 28023149, 40033070, 56046298, 140115745, 280231490]

約数ペア:

[(1, 280231490), (2, 140115745), (5, 56046298), (7, 40033070), (10, 28023149), (11, 25475590), (14, 20016535), (22, 12737795), (35, 8006614), (49, 5719010), (55, 5095118), (70, 4003307), (77, 3639370), (98, 2859505), (110, 2547559), (154, 1819685), (245, 1143802), (385, 727874), (490, 571901), (539, 519910), (770, 363937), (1078, 259955), (2695, 103982), (5390, 51991)]