305860720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:263

約数の個数: 160

約数和(自身を含む): 813162240

約数和(自身を除く): 507301520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 59, 80, 86, 88, 110, 118, 137, 172, 176, 215, 220, 236, 274, 295, 344, 430, 440, 472, 473, 548, 590, 649, 685, 688, 860, 880, 944, 946, 1096, 1180, 1298, 1370, 1507, 1720, 1892, 2192, 2360, 2365, 2537, 2596, 2740, 3014, 3245, 3440, 3784, 4720, 4730, 5074, 5192, 5480, 5891, 6028, 6490, 7535, 7568, 8083, 9460, 10148, 10384, 10960, 11782, 12056, 12685, 12980, 15070, 16166, 18920, 20296, 23564, 24112, 25370, 25960, 27907, 29455, 30140, 32332, 37840, 40415, 40592, 47128, 50740, 51920, 55814, 58910, 60280, 64664, 64801, 80830, 88913, 94256, 101480, 111628, 117820, 120560, 129328, 129602, 139535, 161660, 177826, 202960, 223256, 235640, 259204, 279070, 323320, 324005, 347569, 355652, 444565, 446512, 471280, 518408, 558140, 646640, 648010, 695138, 711304, 889130, 1036816, 1116280, 1296020, 1390276, 1422608, 1737845, 1778260, 2232560, 2592040, 2780552, 3475690, 3556520, 3823259, 5184080, 5561104, 6951380, 7113040, 7646518, 13902760, 15293036, 19116295, 27805520, 30586072, 38232590, 61172144, 76465180, 152930360, 305860720]

約数ペア:

[(1, 305860720), (2, 152930360), (4, 76465180), (5, 61172144), (8, 38232590), (10, 30586072), (11, 27805520), (16, 19116295), (20, 15293036), (22, 13902760), (40, 7646518), (43, 7113040), (44, 6951380), (55, 5561104), (59, 5184080), (80, 3823259), (86, 3556520), (88, 3475690), (110, 2780552), (118, 2592040), (137, 2232560), (172, 1778260), (176, 1737845), (215, 1422608), (220, 1390276), (236, 1296020), (274, 1116280), (295, 1036816), (344, 889130), (430, 711304), (440, 695138), (472, 648010), (473, 646640), (548, 558140), (590, 518408), (649, 471280), (685, 446512), (688, 444565), (860, 355652), (880, 347569), (944, 324005), (946, 323320), (1096, 279070), (1180, 259204), (1298, 235640), (1370, 223256), (1507, 202960), (1720, 177826), (1892, 161660), (2192, 139535), (2360, 129602), (2365, 129328), (2537, 120560), (2596, 117820), (2740, 111628), (3014, 101480), (3245, 94256), (3440, 88913), (3784, 80830), (4720, 64801), (4730, 64664), (5074, 60280), (5192, 58910), (5480, 55814), (5891, 51920), (6028, 50740), (6490, 47128), (7535, 40592), (7568, 40415), (8083, 37840), (9460, 32332), (10148, 30140), (10384, 29455), (10960, 27907), (11782, 25960), (12056, 25370), (12685, 24112), (12980, 23564), (15070, 20296), (16166, 18920)]