280207965

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1\times {\mathrm{2143}}^1$

素因数の和:2553

約数の個数: 32

約数和(自身を含む): 469278720

約数和(自身を除く): 189070755

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 379, 1137, 1895, 2143, 5685, 6429, 8717, 10715, 26151, 32145, 43585, 49289, 130755, 147867, 246445, 739335, 812197, 2436591, 4060985, 12182955, 18680531, 56041593, 93402655, 280207965]

約数ペア:

[(1, 280207965), (3, 93402655), (5, 56041593), (15, 18680531), (23, 12182955), (69, 4060985), (115, 2436591), (345, 812197), (379, 739335), (1137, 246445), (1895, 147867), (2143, 130755), (5685, 49289), (6429, 43585), (8717, 32145), (10715, 26151)]