12885280

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2777}}^1$

素因数の和:2821

約数の個数: 48

約数和(自身を含む): 31502520

約数和(自身を除く): 18617240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 2777, 4640, 5554, 11108, 13885, 22216, 27770, 44432, 55540, 80533, 88864, 111080, 161066, 222160, 322132, 402665, 444320, 644264, 805330, 1288528, 1610660, 2577056, 3221320, 6442640, 12885280]

約数ペア:

[(1, 12885280), (2, 6442640), (4, 3221320), (5, 2577056), (8, 1610660), (10, 1288528), (16, 805330), (20, 644264), (29, 444320), (32, 402665), (40, 322132), (58, 222160), (80, 161066), (116, 111080), (145, 88864), (160, 80533), (232, 55540), (290, 44432), (464, 27770), (580, 22216), (928, 13885), (1160, 11108), (2320, 5554), (2777, 4640)]