19855360

素因数分解:

$2^{11}\times 5^1\times 7^1\times {\mathrm{277}}^1$

素因数の和:311

約数の個数: 96

約数和(自身を含む): 54643680

約数和(自身を除く): 34788320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 277, 280, 320, 448, 512, 554, 560, 640, 896, 1024, 1108, 1120, 1280, 1385, 1792, 1939, 2048, 2216, 2240, 2560, 2770, 3584, 3878, 4432, 4480, 5120, 5540, 7168, 7756, 8864, 8960, 9695, 10240, 11080, 14336, 15512, 17728, 17920, 19390, 22160, 31024, 35456, 35840, 38780, 44320, 62048, 70912, 71680, 77560, 88640, 124096, 141824, 155120, 177280, 248192, 283648, 310240, 354560, 496384, 567296, 620480, 709120, 992768, 1240960, 1418240, 1985536, 2481920, 2836480, 3971072, 4963840, 9927680, 19855360]

約数ペア:

[(1, 19855360), (2, 9927680), (4, 4963840), (5, 3971072), (7, 2836480), (8, 2481920), (10, 1985536), (14, 1418240), (16, 1240960), (20, 992768), (28, 709120), (32, 620480), (35, 567296), (40, 496384), (56, 354560), (64, 310240), (70, 283648), (80, 248192), (112, 177280), (128, 155120), (140, 141824), (160, 124096), (224, 88640), (256, 77560), (277, 71680), (280, 70912), (320, 62048), (448, 44320), (512, 38780), (554, 35840), (560, 35456), (640, 31024), (896, 22160), (1024, 19390), (1108, 17920), (1120, 17728), (1280, 15512), (1385, 14336), (1792, 11080), (1939, 10240), (2048, 9695), (2216, 8960), (2240, 8864), (2560, 7756), (2770, 7168), (3584, 5540), (3878, 5120), (4432, 4480)]