680983040

素因数分解:

$2^9\times 5^1\times {\mathrm{266009}}^1$

素因数の和:266032

約数の個数: 40

約数和(自身を含む): 1632769380

約数和(自身を除く): 951786340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 266009, 532018, 1064036, 1330045, 2128072, 2660090, 4256144, 5320180, 8512288, 10640360, 17024576, 21280720, 34049152, 42561440, 68098304, 85122880, 136196608, 170245760, 340491520, 680983040]

約数ペア:

[(1, 680983040), (2, 340491520), (4, 170245760), (5, 136196608), (8, 85122880), (10, 68098304), (16, 42561440), (20, 34049152), (32, 21280720), (40, 17024576), (64, 10640360), (80, 8512288), (128, 5320180), (160, 4256144), (256, 2660090), (320, 2128072), (512, 1330045), (640, 1064036), (1280, 532018), (2560, 266009)]