20201771525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1679981}}^1$

素因数の和:1680041

約数の個数: 24

約数和(自身を含む): 27706263144

約数和(自身を除く): 7504491619

約数列:

[1, 5, 13, 25, 37, 65, 185, 325, 481, 925, 2405, 12025, 1679981, 8399905, 21839753, 41999525, 62159297, 109198765, 310796485, 545993825, 808070861, 1553982425, 4040354305, 20201771525]

約数ペア:

[(1, 20201771525), (5, 4040354305), (13, 1553982425), (25, 808070861), (37, 545993825), (65, 310796485), (185, 109198765), (325, 62159297), (481, 41999525), (925, 21839753), (2405, 8399905), (12025, 1679981)]