220406720

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:286

約数の個数: 112

約数和(自身を含む): 543153600

約数和(自身を除く): 322746880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 89, 109, 142, 160, 178, 218, 284, 320, 355, 356, 436, 445, 545, 568, 710, 712, 872, 890, 1090, 1136, 1420, 1424, 1744, 1780, 2180, 2272, 2840, 2848, 3488, 3560, 4360, 4544, 5680, 5696, 6319, 6976, 7120, 7739, 8720, 9701, 11360, 12638, 14240, 15478, 17440, 19402, 22720, 25276, 28480, 30956, 31595, 34880, 38695, 38804, 48505, 50552, 61912, 63190, 77390, 77608, 97010, 101104, 123824, 126380, 154780, 155216, 194020, 202208, 247648, 252760, 309560, 310432, 388040, 404416, 495296, 505520, 619120, 620864, 688771, 776080, 1011040, 1238240, 1377542, 1552160, 2022080, 2476480, 2755084, 3104320, 3443855, 5510168, 6887710, 11020336, 13775420, 22040672, 27550840, 44081344, 55101680, 110203360, 220406720]

約数ペア:

[(1, 220406720), (2, 110203360), (4, 55101680), (5, 44081344), (8, 27550840), (10, 22040672), (16, 13775420), (20, 11020336), (32, 6887710), (40, 5510168), (64, 3443855), (71, 3104320), (80, 2755084), (89, 2476480), (109, 2022080), (142, 1552160), (160, 1377542), (178, 1238240), (218, 1011040), (284, 776080), (320, 688771), (355, 620864), (356, 619120), (436, 505520), (445, 495296), (545, 404416), (568, 388040), (710, 310432), (712, 309560), (872, 252760), (890, 247648), (1090, 202208), (1136, 194020), (1420, 155216), (1424, 154780), (1744, 126380), (1780, 123824), (2180, 101104), (2272, 97010), (2840, 77608), (2848, 77390), (3488, 63190), (3560, 61912), (4360, 50552), (4544, 48505), (5680, 38804), (5696, 38695), (6319, 34880), (6976, 31595), (7120, 30956), (7739, 28480), (8720, 25276), (9701, 22720), (11360, 19402), (12638, 17440), (14240, 15478)]