13212875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:248

約数の個数: 32

約数和(自身を含む): 18240768

約数和(自身を除く): 5027893

約数列:

[1, 5, 13, 25, 47, 65, 125, 173, 235, 325, 611, 865, 1175, 1625, 2249, 3055, 4325, 5875, 8131, 11245, 15275, 21625, 40655, 56225, 76375, 105703, 203275, 281125, 528515, 1016375, 2642575, 13212875]

約数ペア:

[(1, 13212875), (5, 2642575), (13, 1016375), (25, 528515), (47, 281125), (65, 203275), (125, 105703), (173, 76375), (235, 56225), (325, 40655), (611, 21625), (865, 15275), (1175, 11245), (1625, 8131), (2249, 5875), (3055, 4325)]