81267125

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:314

約数の個数: 32

約数和(自身を含む): 105592032

約数和(自身を除く): 24324907

約数列:

[1, 5, 25, 41, 101, 125, 157, 205, 505, 785, 1025, 2525, 3925, 4141, 5125, 6437, 12625, 15857, 19625, 20705, 32185, 79285, 103525, 160925, 396425, 517625, 650137, 804625, 1982125, 3250685, 16253425, 81267125]

約数ペア:

[(1, 81267125), (5, 16253425), (25, 3250685), (41, 1982125), (101, 804625), (125, 650137), (157, 517625), (205, 396425), (505, 160925), (785, 103525), (1025, 79285), (2525, 32185), (3925, 20705), (4141, 19625), (5125, 15857), (6437, 12625)]