51111125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 69818112

約数和(自身を除く): 18706987

約数列:

[1, 5, 13, 25, 65, 71, 125, 325, 355, 443, 923, 1625, 1775, 2215, 4615, 5759, 8875, 11075, 23075, 28795, 31453, 55375, 115375, 143975, 157265, 408889, 719875, 786325, 2044445, 3931625, 10222225, 51111125]

約数ペア:

[(1, 51111125), (5, 10222225), (13, 3931625), (25, 2044445), (65, 786325), (71, 719875), (125, 408889), (325, 157265), (355, 143975), (443, 115375), (923, 55375), (1625, 31453), (1775, 28795), (2215, 23075), (4615, 11075), (5759, 8875)]