81230745

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{857}}^1$

素因数の和:1025

約数の個数: 32

約数和(自身を含む): 133436160

約数和(自身を除く): 52205415

約数列:

[1, 3, 5, 15, 71, 89, 213, 267, 355, 445, 857, 1065, 1335, 2571, 4285, 6319, 12855, 18957, 31595, 60847, 76273, 94785, 182541, 228819, 304235, 381365, 912705, 1144095, 5415383, 16246149, 27076915, 81230745]

約数ペア:

[(1, 81230745), (3, 27076915), (5, 16246149), (15, 5415383), (71, 1144095), (89, 912705), (213, 381365), (267, 304235), (355, 228819), (445, 182541), (857, 94785), (1065, 76273), (1335, 60847), (2571, 31595), (4285, 18957), (6319, 12855)]