19909625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:218

約数の個数: 32

約数和(自身を含む): 26732160

約数和(自身を除く): 6822535

約数列:

[1, 5, 19, 25, 83, 95, 101, 125, 415, 475, 505, 1577, 1919, 2075, 2375, 2525, 7885, 8383, 9595, 10375, 12625, 39425, 41915, 47975, 159277, 197125, 209575, 239875, 796385, 1047875, 3981925, 19909625]

約数ペア:

[(1, 19909625), (5, 3981925), (19, 1047875), (25, 796385), (83, 239875), (95, 209575), (101, 197125), (125, 159277), (415, 47975), (475, 41915), (505, 39425), (1577, 12625), (1919, 10375), (2075, 9595), (2375, 8383), (2525, 7885)]