210798575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{1321}}^1$

素因数の和:1835

約数の個数: 24

約数和(自身を含む): 282284016

約数和(自身を除く): 71485441

約数列:

[1, 5, 13, 25, 65, 325, 491, 1321, 2455, 6383, 6605, 12275, 17173, 31915, 33025, 85865, 159575, 429325, 648611, 3243055, 8431943, 16215275, 42159715, 210798575]

約数ペア:

[(1, 210798575), (5, 42159715), (13, 16215275), (25, 8431943), (65, 3243055), (325, 648611), (491, 429325), (1321, 159575), (2455, 85865), (6383, 33025), (6605, 31915), (12275, 17173)]