140483840

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{15679}}^1$

素因数の和:15707

約数の個数: 72

約数和(自身を含む): 384599040

約数和(自身を除く): 244115200

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, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 15679, 31358, 62716, 78395, 109753, 125432, 156790, 219506, 250864, 313580, 439012, 501728, 548765, 627160, 878024, 1003456, 1097530, 1254320, 1756048, 2006912, 2195060, 2508640, 3512096, 4013824, 4390120, 5017280, 7024192, 8780240, 10034560, 14048384, 17560480, 20069120, 28096768, 35120960, 70241920, 140483840]

約数ペア:

[(1, 140483840), (2, 70241920), (4, 35120960), (5, 28096768), (7, 20069120), (8, 17560480), (10, 14048384), (14, 10034560), (16, 8780240), (20, 7024192), (28, 5017280), (32, 4390120), (35, 4013824), (40, 3512096), (56, 2508640), (64, 2195060), (70, 2006912), (80, 1756048), (112, 1254320), (128, 1097530), (140, 1003456), (160, 878024), (224, 627160), (256, 548765), (280, 501728), (320, 439012), (448, 313580), (560, 250864), (640, 219506), (896, 156790), (1120, 125432), (1280, 109753), (1792, 78395), (2240, 62716), (4480, 31358), (8960, 15679)]