199159640

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{36343}}^1$

素因数の和:36491

約数の個数: 32

約数和(自身を含む): 451392480

約数和(自身を除く): 252232840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 36343, 72686, 145372, 181715, 290744, 363430, 726860, 1453720, 4978991, 9957982, 19915964, 24894955, 39831928, 49789910, 99579820, 199159640]

約数ペア:

[(1, 199159640), (2, 99579820), (4, 49789910), (5, 39831928), (8, 24894955), (10, 19915964), (20, 9957982), (40, 4978991), (137, 1453720), (274, 726860), (548, 363430), (685, 290744), (1096, 181715), (1370, 145372), (2740, 72686), (5480, 36343)]