20725400

素因数分解:

$2^3\times 5^2\times {\mathrm{173}}^1\times {\mathrm{599}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 48546000

約数和(自身を除く): 27820600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 173, 200, 346, 599, 692, 865, 1198, 1384, 1730, 2396, 2995, 3460, 4325, 4792, 5990, 6920, 8650, 11980, 14975, 17300, 23960, 29950, 34600, 59900, 103627, 119800, 207254, 414508, 518135, 829016, 1036270, 2072540, 2590675, 4145080, 5181350, 10362700, 20725400]

約数ペア:

[(1, 20725400), (2, 10362700), (4, 5181350), (5, 4145080), (8, 2590675), (10, 2072540), (20, 1036270), (25, 829016), (40, 518135), (50, 414508), (100, 207254), (173, 119800), (200, 103627), (346, 59900), (599, 34600), (692, 29950), (865, 23960), (1198, 17300), (1384, 14975), (1730, 11980), (2396, 8650), (2995, 6920), (3460, 5990), (4325, 4792)]