51861875

素因数分解:

$5^4\times {\mathrm{13}}^2\times {\mathrm{491}}^1$

素因数の和:537

約数の個数: 30

約数和(自身を含む): 70318116

約数和(自身を除く): 18456241

約数列:

[1, 5, 13, 25, 65, 125, 169, 325, 491, 625, 845, 1625, 2455, 4225, 6383, 8125, 12275, 21125, 31915, 61375, 82979, 105625, 159575, 306875, 414895, 797875, 2074475, 3989375, 10372375, 51861875]

約数ペア:

[(1, 51861875), (5, 10372375), (13, 3989375), (25, 2074475), (65, 797875), (125, 414895), (169, 306875), (325, 159575), (491, 105625), (625, 82979), (845, 61375), (1625, 31915), (2455, 21125), (4225, 12275), (6383, 8125)]