84207025

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{20921}}^1$

素因数の和:20961

約数の個数: 24

約数和(自身を含む): 124527744

約数和(自身を除く): 40320719

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 805, 4025, 20921, 104605, 146447, 481183, 523025, 732235, 2405915, 3368281, 3661175, 12029575, 16841405, 84207025]

約数ペア:

[(1, 84207025), (5, 16841405), (7, 12029575), (23, 3661175), (25, 3368281), (35, 2405915), (115, 732235), (161, 523025), (175, 481183), (575, 146447), (805, 104605), (4025, 20921)]