20519390

素因数分解:

$2^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:392

約数の個数: 32

約数和(自身を含む): 37822464

約数和(自身を除く): 17303074

約数列:

[1, 2, 5, 10, 107, 127, 151, 214, 254, 302, 535, 635, 755, 1070, 1270, 1510, 13589, 16157, 19177, 27178, 32314, 38354, 67945, 80785, 95885, 135890, 161570, 191770, 2051939, 4103878, 10259695, 20519390]

約数ペア:

[(1, 20519390), (2, 10259695), (5, 4103878), (10, 2051939), (107, 191770), (127, 161570), (151, 135890), (214, 95885), (254, 80785), (302, 67945), (535, 38354), (635, 32314), (755, 27178), (1070, 19177), (1270, 16157), (1510, 13589)]