1778260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 4173120

約数和(自身を除く): 2394860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 137, 220, 236, 274, 295, 548, 590, 649, 685, 1180, 1298, 1370, 1507, 2596, 2740, 3014, 3245, 6028, 6490, 7535, 8083, 12980, 15070, 16166, 30140, 32332, 40415, 80830, 88913, 161660, 177826, 355652, 444565, 889130, 1778260]

約数ペア:

[(1, 1778260), (2, 889130), (4, 444565), (5, 355652), (10, 177826), (11, 161660), (20, 88913), (22, 80830), (44, 40415), (55, 32332), (59, 30140), (110, 16166), (118, 15070), (137, 12980), (220, 8083), (236, 7535), (274, 6490), (295, 6028), (548, 3245), (590, 3014), (649, 2740), (685, 2596), (1180, 1507), (1298, 1370)]