20440225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{577}}^1$

素因数の和:709

約数の個数: 24

約数和(自身を含む): 27593720

約数和(自身を除く): 7153495

約数列:

[1, 5, 13, 25, 65, 109, 325, 545, 577, 1417, 2725, 2885, 7085, 7501, 14425, 35425, 37505, 62893, 187525, 314465, 817609, 1572325, 4088045, 20440225]

約数ペア:

[(1, 20440225), (5, 4088045), (13, 1572325), (25, 817609), (65, 314465), (109, 187525), (325, 62893), (545, 37505), (577, 35425), (1417, 14425), (2725, 7501), (2885, 7085)]