128471875

素因数分解:

$5^5\times 7^2\times {\mathrm{839}}^1$

素因数の和:878

約数の個数: 36

約数和(自身を含む): 187019280

約数和(自身を除く): 58547405

約数列:

[1, 5, 7, 25, 35, 49, 125, 175, 245, 625, 839, 875, 1225, 3125, 4195, 4375, 5873, 6125, 20975, 21875, 29365, 30625, 41111, 104875, 146825, 153125, 205555, 524375, 734125, 1027775, 2621875, 3670625, 5138875, 18353125, 25694375, 128471875]

約数ペア:

[(1, 128471875), (5, 25694375), (7, 18353125), (25, 5138875), (35, 3670625), (49, 2621875), (125, 1027775), (175, 734125), (245, 524375), (625, 205555), (839, 153125), (875, 146825), (1225, 104875), (3125, 41111), (4195, 30625), (4375, 29365), (5873, 21875), (6125, 20975)]