18271775

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{739}}^1$

素因数の和:815

約数の個数: 24

約数和(自身を含む): 24224640

約数和(自身を除く): 5952865

約数列:

[1, 5, 23, 25, 43, 115, 215, 575, 739, 989, 1075, 3695, 4945, 16997, 18475, 24725, 31777, 84985, 158885, 424925, 730871, 794425, 3654355, 18271775]

約数ペア:

[(1, 18271775), (5, 3654355), (23, 794425), (25, 730871), (43, 424925), (115, 158885), (215, 84985), (575, 31777), (739, 24725), (989, 18475), (1075, 16997), (3695, 4945)]