206519215

素因数分解:

$5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{199}}^2$

素因数の和:559

約数の個数: 24

約数和(自身を含む): 286567200

約数和(自身を除く): 80047985

約数列:

[1, 5, 7, 35, 149, 199, 745, 995, 1043, 1393, 5215, 6965, 29651, 39601, 148255, 198005, 207557, 277207, 1037785, 1386035, 5900549, 29502745, 41303843, 206519215]

約数ペア:

[(1, 206519215), (5, 41303843), (7, 29502745), (35, 5900549), (149, 1386035), (199, 1037785), (745, 277207), (995, 207557), (1043, 198005), (1393, 148255), (5215, 39601), (6965, 29651)]