68418905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 91203840

約数和(自身を除く): 22784935

約数列:

[1, 5, 19, 23, 95, 115, 173, 181, 437, 865, 905, 2185, 3287, 3439, 3979, 4163, 16435, 17195, 19895, 20815, 31313, 75601, 79097, 156565, 378005, 395485, 594947, 720199, 2974735, 3600995, 13683781, 68418905]

約数ペア:

[(1, 68418905), (5, 13683781), (19, 3600995), (23, 2974735), (95, 720199), (115, 594947), (173, 395485), (181, 378005), (437, 156565), (865, 79097), (905, 75601), (2185, 31313), (3287, 20815), (3439, 19895), (3979, 17195), (4163, 16435)]