220264960

素因数分解:

$2^9\times 5^1\times {\mathrm{139}}^1\times {\mathrm{619}}^1$

素因数の和:781

約数の個数: 80

約数和(自身を含む): 532778400

約数和(自身を除く): 312513440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 256, 278, 320, 512, 556, 619, 640, 695, 1112, 1238, 1280, 1390, 2224, 2476, 2560, 2780, 3095, 4448, 4952, 5560, 6190, 8896, 9904, 11120, 12380, 17792, 19808, 22240, 24760, 35584, 39616, 44480, 49520, 71168, 79232, 86041, 88960, 99040, 158464, 172082, 177920, 198080, 316928, 344164, 355840, 396160, 430205, 688328, 792320, 860410, 1376656, 1584640, 1720820, 2753312, 3441640, 5506624, 6883280, 11013248, 13766560, 22026496, 27533120, 44052992, 55066240, 110132480, 220264960]

約数ペア:

[(1, 220264960), (2, 110132480), (4, 55066240), (5, 44052992), (8, 27533120), (10, 22026496), (16, 13766560), (20, 11013248), (32, 6883280), (40, 5506624), (64, 3441640), (80, 2753312), (128, 1720820), (139, 1584640), (160, 1376656), (256, 860410), (278, 792320), (320, 688328), (512, 430205), (556, 396160), (619, 355840), (640, 344164), (695, 316928), (1112, 198080), (1238, 177920), (1280, 172082), (1390, 158464), (2224, 99040), (2476, 88960), (2560, 86041), (2780, 79232), (3095, 71168), (4448, 49520), (4952, 44480), (5560, 39616), (6190, 35584), (8896, 24760), (9904, 22240), (11120, 19808), (12380, 17792)]