1257065

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1$

素因数の和:688

約数の個数: 16

約数和(自身を含む): 1669248

約数和(自身を除く): 412183

約数列:

[1, 5, 17, 23, 85, 115, 391, 643, 1955, 3215, 10931, 14789, 54655, 73945, 251413, 1257065]

約数ペア:

[(1, 1257065), (5, 251413), (17, 73945), (23, 54655), (85, 14789), (115, 10931), (391, 3215), (643, 1955)]