7155220

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2731}}^1$

素因数の和:2871

約数の個数: 24

約数和(自身を含む): 15146208

約数和(自身を除く): 7990988

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 2731, 5462, 10924, 13655, 27310, 54620, 357761, 715522, 1431044, 1788805, 3577610, 7155220]

約数ペア:

[(1, 7155220), (2, 3577610), (4, 1788805), (5, 1431044), (10, 715522), (20, 357761), (131, 54620), (262, 27310), (524, 13655), (655, 10924), (1310, 5462), (2620, 2731)]