42720255

素因数分解:

$3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{9787}}^1$

素因数の和:9895

約数の個数: 24

約数和(自身を含む): 74819472

約数和(自身を除く): 32099217

約数列:

[1, 3, 5, 9, 15, 45, 97, 291, 485, 873, 1455, 4365, 9787, 29361, 48935, 88083, 146805, 440415, 949339, 2848017, 4746695, 8544051, 14240085, 42720255]

約数ペア:

[(1, 42720255), (3, 14240085), (5, 8544051), (9, 4746695), (15, 2848017), (45, 949339), (97, 440415), (291, 146805), (485, 88083), (873, 48935), (1455, 29361), (4365, 9787)]