779991810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1999979}}^1$

素因数の和:2000002

約数の個数: 32

約数和(自身を含む): 2015979840

約数和(自身を除く): 1235988030

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 1999979, 3999958, 5999937, 9999895, 11999874, 19999790, 25999727, 29999685, 51999454, 59999370, 77999181, 129998635, 155998362, 259997270, 389995905, 779991810]

約数ペア:

[(1, 779991810), (2, 389995905), (3, 259997270), (5, 155998362), (6, 129998635), (10, 77999181), (13, 59999370), (15, 51999454), (26, 29999685), (30, 25999727), (39, 19999790), (65, 11999874), (78, 9999895), (130, 5999937), (195, 3999958), (390, 1999979)]