13900705

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 20772864

約数和(自身を除く): 6872159

約数列:

[1, 5, 7, 13, 35, 65, 91, 137, 223, 455, 685, 959, 1115, 1561, 1781, 2899, 4795, 7805, 8905, 12467, 14495, 20293, 30551, 62335, 101465, 152755, 213857, 397163, 1069285, 1985815, 2780141, 13900705]

約数ペア:

[(1, 13900705), (5, 2780141), (7, 1985815), (13, 1069285), (35, 397163), (65, 213857), (91, 152755), (137, 101465), (223, 62335), (455, 30551), (685, 20293), (959, 14495), (1115, 12467), (1561, 8905), (1781, 7805), (2899, 4795)]