20408856

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{65413}}^1$

素因数の和:65435

約数の個数: 32

約数和(自身を含む): 54947760

約数和(自身を除く): 34538904

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 65413, 130826, 196239, 261652, 392478, 523304, 784956, 850369, 1569912, 1700738, 2551107, 3401476, 5102214, 6802952, 10204428, 20408856]

約数ペア:

[(1, 20408856), (2, 10204428), (3, 6802952), (4, 5102214), (6, 3401476), (8, 2551107), (12, 1700738), (13, 1569912), (24, 850369), (26, 784956), (39, 523304), (52, 392478), (78, 261652), (104, 196239), (156, 130826), (312, 65413)]