66889020.000000000

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{285937}}^1$

素因数の和:285960

約数の個数: 32

約数和(自身を含む): 288225504

約数和(自身を除く): 176710074

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 285937, 571874, 857811, 1429685, 1715622, 2859370, 3717181, 4289055, 7434362, 8578110, 11151543, 18585905, 22303086, 37171810, 55757715, 111515430]

約数ペア:

[(1, 111515430), (2, 55757715), (3, 37171810), (5, 22303086), (6, 18585905), (10, 11151543), (13, 8578110), (15, 7434362), (26, 4289055), (30, 3717181), (39, 2859370), (65, 1715622), (78, 1429685), (130, 857811), (195, 571874), (390, 285937)]