19961675

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{599}}^1$

素因数の和:683

約数の個数: 24

約数和(自身を含む): 26188800

約数和(自身を除く): 6227125

約数列:

[1, 5, 25, 31, 43, 155, 215, 599, 775, 1075, 1333, 2995, 6665, 14975, 18569, 25757, 33325, 92845, 128785, 464225, 643925, 798467, 3992335, 19961675]

約数ペア:

[(1, 19961675), (5, 3992335), (25, 798467), (31, 643925), (43, 464225), (155, 128785), (215, 92845), (599, 33325), (775, 25757), (1075, 18569), (1333, 14975), (2995, 6665)]