2001805

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:157

約数の個数: 24

約数和(自身を含む): 2740608

約数和(自身を除く): 738803

約数列:

[1, 5, 13, 23, 65, 103, 115, 169, 299, 515, 845, 1339, 1495, 2369, 3887, 6695, 11845, 17407, 19435, 30797, 87035, 153985, 400361, 2001805]

約数ペア:

[(1, 2001805), (5, 400361), (13, 153985), (23, 87035), (65, 30797), (103, 19435), (115, 17407), (169, 11845), (299, 6695), (515, 3887), (845, 2369), (1339, 1495)]