28871680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{5639}}^1$

素因数の和:5664

約数の個数: 44

約数和(自身を含む): 69270480

約数和(自身を除く): 40398800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 5639, 11278, 22556, 28195, 45112, 56390, 90224, 112780, 180448, 225560, 360896, 451120, 721792, 902240, 1443584, 1804480, 2887168, 3608960, 5774336, 7217920, 14435840, 28871680]

約数ペア:

[(1, 28871680), (2, 14435840), (4, 7217920), (5, 5774336), (8, 3608960), (10, 2887168), (16, 1804480), (20, 1443584), (32, 902240), (40, 721792), (64, 451120), (80, 360896), (128, 225560), (160, 180448), (256, 112780), (320, 90224), (512, 56390), (640, 45112), (1024, 28195), (1280, 22556), (2560, 11278), (5120, 5639)]