81193710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{208189}}^1$

素因数の和:208212

約数の個数: 32

約数和(自身を含む): 209855520

約数和(自身を除く): 128661810

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 208189, 416378, 624567, 1040945, 1249134, 2081890, 2706457, 3122835, 5412914, 6245670, 8119371, 13532285, 16238742, 27064570, 40596855, 81193710]

約数ペア:

[(1, 81193710), (2, 40596855), (3, 27064570), (5, 16238742), (6, 13532285), (10, 8119371), (13, 6245670), (15, 5412914), (26, 3122835), (30, 2706457), (39, 2081890), (65, 1249134), (78, 1040945), (130, 624567), (195, 416378), (390, 208189)]