1388890185

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{67933}}^1$

素因数の和:68017

約数の個数: 32

約数和(自身を含む): 2347799040

約数和(自身を除く): 958908855

約数列:

[1, 3, 5, 15, 29, 47, 87, 141, 145, 235, 435, 705, 1363, 4089, 6815, 20445, 67933, 203799, 339665, 1018995, 1970057, 3192851, 5910171, 9578553, 9850285, 15964255, 29550855, 47892765, 92592679, 277778037, 462963395, 1388890185]

約数ペア:

[(1, 1388890185), (3, 462963395), (5, 277778037), (15, 92592679), (29, 47892765), (47, 29550855), (87, 15964255), (141, 9850285), (145, 9578553), (235, 5910171), (435, 3192851), (705, 1970057), (1363, 1018995), (4089, 339665), (6815, 203799), (20445, 67933)]