290217980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1116223}}^1$

素因数の和:1116245

約数の個数: 24

約数和(自身を含む): 656339712

約数和(自身を除く): 366121732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1116223, 2232446, 4464892, 5581115, 11162230, 14510899, 22324460, 29021798, 58043596, 72554495, 145108990, 290217980]

約数ペア:

[(1, 290217980), (2, 145108990), (4, 72554495), (5, 58043596), (10, 29021798), (13, 22324460), (20, 14510899), (26, 11162230), (52, 5581115), (65, 4464892), (130, 2232446), (260, 1116223)]