64741990

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{43451}}^1$

素因数の和:43607

約数の個数: 16

約数和(自身を含む): 117320400

約数和(自身を除く): 52578410

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 43451, 86902, 217255, 434510, 6474199, 12948398, 32370995, 64741990]

約数ペア:

[(1, 64741990), (2, 32370995), (5, 12948398), (10, 6474199), (149, 434510), (298, 217255), (745, 86902), (1490, 43451)]