80978800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{28921}}^1$

素因数の和:28946

約数の個数: 60

約数和(自身を含む): 222352336

約数和(自身を除く): 141373536

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 28921, 57842, 115684, 144605, 202447, 231368, 289210, 404894, 462736, 578420, 723025, 809788, 1012235, 1156840, 1446050, 1619576, 2024470, 2313680, 2892100, 3239152, 4048940, 5061175, 5784200, 8097880, 10122350, 11568400, 16195760, 20244700, 40489400, 80978800]

約数ペア:

[(1, 80978800), (2, 40489400), (4, 20244700), (5, 16195760), (7, 11568400), (8, 10122350), (10, 8097880), (14, 5784200), (16, 5061175), (20, 4048940), (25, 3239152), (28, 2892100), (35, 2313680), (40, 2024470), (50, 1619576), (56, 1446050), (70, 1156840), (80, 1012235), (100, 809788), (112, 723025), (140, 578420), (175, 462736), (200, 404894), (280, 289210), (350, 231368), (400, 202447), (560, 144605), (700, 115684), (1400, 57842), (2800, 28921)]