15664280

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1489}}^1$

素因数の和:1763

約数の個数: 32

約数和(自身を含む): 35402400

約数和(自身を除く): 19738120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 1489, 2104, 2630, 2978, 5260, 5956, 7445, 10520, 11912, 14890, 29780, 59560, 391607, 783214, 1566428, 1958035, 3132856, 3916070, 7832140, 15664280]

約数ペア:

[(1, 15664280), (2, 7832140), (4, 3916070), (5, 3132856), (8, 1958035), (10, 1566428), (20, 783214), (40, 391607), (263, 59560), (526, 29780), (1052, 14890), (1315, 11912), (1489, 10520), (2104, 7445), (2630, 5956), (2978, 5260)]