28519040

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4051}}^1$

素因数の和:4081

約数の個数: 64

約数和(自身を含む): 74394720

約数和(自身を除く): 45875680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3520, 4051, 7040, 8102, 16204, 20255, 32408, 40510, 44561, 64816, 81020, 89122, 129632, 162040, 178244, 222805, 259264, 324080, 356488, 445610, 518528, 648160, 712976, 891220, 1296320, 1425952, 1782440, 2592640, 2851904, 3564880, 5703808, 7129760, 14259520, 28519040]

約数ペア:

[(1, 28519040), (2, 14259520), (4, 7129760), (5, 5703808), (8, 3564880), (10, 2851904), (11, 2592640), (16, 1782440), (20, 1425952), (22, 1296320), (32, 891220), (40, 712976), (44, 648160), (55, 518528), (64, 445610), (80, 356488), (88, 324080), (110, 259264), (128, 222805), (160, 178244), (176, 162040), (220, 129632), (320, 89122), (352, 81020), (440, 64816), (640, 44561), (704, 40510), (880, 32408), (1408, 20255), (1760, 16204), (3520, 8102), (4051, 7040)]