28427295

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1997}}^1$

素因数の和:2091

約数の個数: 32

約数和(自身を含む): 49678272

約数和(自身を除く): 21250977

約数列:

[1, 3, 5, 13, 15, 39, 65, 73, 195, 219, 365, 949, 1095, 1997, 2847, 4745, 5991, 9985, 14235, 25961, 29955, 77883, 129805, 145781, 389415, 437343, 728905, 1895153, 2186715, 5685459, 9475765, 28427295]

約数ペア:

[(1, 28427295), (3, 9475765), (5, 5685459), (13, 2186715), (15, 1895153), (39, 728905), (65, 437343), (73, 389415), (195, 145781), (219, 129805), (365, 77883), (949, 29955), (1095, 25961), (1997, 14235), (2847, 9985), (4745, 5991)]