179979640

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{32843}}^1$

素因数の和:32991

約数の個数: 32

約数和(自身を含む): 407922480

約数和(自身を除く): 227942840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 32843, 65686, 131372, 164215, 262744, 328430, 656860, 1313720, 4499491, 8998982, 17997964, 22497455, 35995928, 44994910, 89989820, 179979640]

約数ペア:

[(1, 179979640), (2, 89989820), (4, 44994910), (5, 35995928), (8, 22497455), (10, 17997964), (20, 8998982), (40, 4499491), (137, 1313720), (274, 656860), (548, 328430), (685, 262744), (1096, 164215), (1370, 131372), (2740, 65686), (5480, 32843)]