289967840

素因数分解:

$2^5\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{1451}}^1$

素因数の和:2715

約数の個数: 48

約数和(自身を含む): 686070000

約数和(自身を除く): 396102160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1249, 1451, 2498, 2902, 4996, 5804, 6245, 7255, 9992, 11608, 12490, 14510, 19984, 23216, 24980, 29020, 39968, 46432, 49960, 58040, 99920, 116080, 199840, 232160, 1812299, 3624598, 7249196, 9061495, 14498392, 18122990, 28996784, 36245980, 57993568, 72491960, 144983920, 289967840]

約数ペア:

[(1, 289967840), (2, 144983920), (4, 72491960), (5, 57993568), (8, 36245980), (10, 28996784), (16, 18122990), (20, 14498392), (32, 9061495), (40, 7249196), (80, 3624598), (160, 1812299), (1249, 232160), (1451, 199840), (2498, 116080), (2902, 99920), (4996, 58040), (5804, 49960), (6245, 46432), (7255, 39968), (9992, 29020), (11608, 24980), (12490, 23216), (14510, 19984)]