1285280

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1$

素因数の和:321

約数の個数: 48

約数和(自身を含む): 3152520

約数和(自身を除く): 1867240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 277, 290, 464, 554, 580, 928, 1108, 1160, 1385, 2216, 2320, 2770, 4432, 4640, 5540, 8033, 8864, 11080, 16066, 22160, 32132, 40165, 44320, 64264, 80330, 128528, 160660, 257056, 321320, 642640, 1285280]

約数ペア:

[(1, 1285280), (2, 642640), (4, 321320), (5, 257056), (8, 160660), (10, 128528), (16, 80330), (20, 64264), (29, 44320), (32, 40165), (40, 32132), (58, 22160), (80, 16066), (116, 11080), (145, 8864), (160, 8033), (232, 5540), (277, 4640), (290, 4432), (464, 2770), (554, 2320), (580, 2216), (928, 1385), (1108, 1160)]