320440960

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{71527}}^1$

素因数の和:71553

約数の個数: 64

約数和(自身を含む): 875502720

約数和(自身を除く): 555061760

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, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 71527, 143054, 286108, 357635, 500689, 572216, 715270, 1001378, 1144432, 1430540, 2002756, 2288864, 2503445, 2861080, 4005512, 4577728, 5006890, 5722160, 8011024, 9155456, 10013780, 11444320, 16022048, 20027560, 22888640, 32044096, 40055120, 45777280, 64088192, 80110240, 160220480, 320440960]

約数ペア:

[(1, 320440960), (2, 160220480), (4, 80110240), (5, 64088192), (7, 45777280), (8, 40055120), (10, 32044096), (14, 22888640), (16, 20027560), (20, 16022048), (28, 11444320), (32, 10013780), (35, 9155456), (40, 8011024), (56, 5722160), (64, 5006890), (70, 4577728), (80, 4005512), (112, 2861080), (128, 2503445), (140, 2288864), (160, 2002756), (224, 1430540), (280, 1144432), (320, 1001378), (448, 715270), (560, 572216), (640, 500689), (896, 357635), (1120, 286108), (2240, 143054), (4480, 71527)]