20478675

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2053}}^1$

素因数の和:2092

約数の個数: 48

約数和(自身を含む): 40751360

約数和(自身を除く): 20272685

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 105, 133, 175, 285, 399, 475, 525, 665, 1425, 1995, 2053, 3325, 6159, 9975, 10265, 14371, 30795, 39007, 43113, 51325, 71855, 117021, 153975, 195035, 215565, 273049, 359275, 585105, 819147, 975175, 1077825, 1365245, 2925525, 4095735, 6826225, 20478675]

約数ペア:

[(1, 20478675), (3, 6826225), (5, 4095735), (7, 2925525), (15, 1365245), (19, 1077825), (21, 975175), (25, 819147), (35, 585105), (57, 359275), (75, 273049), (95, 215565), (105, 195035), (133, 153975), (175, 117021), (285, 71855), (399, 51325), (475, 43113), (525, 39007), (665, 30795), (1425, 14371), (1995, 10265), (2053, 9975), (3325, 6159)]