19798975

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4919}}^1$

素因数の和:4959

約数の個数: 24

約数和(自身を含む): 29283840

約数和(自身を除く): 9484865

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 805, 4025, 4919, 24595, 34433, 113137, 122975, 172165, 565685, 791959, 860825, 2828425, 3959795, 19798975]

約数ペア:

[(1, 19798975), (5, 3959795), (7, 2828425), (23, 860825), (25, 791959), (35, 565685), (115, 172165), (161, 122975), (175, 113137), (575, 34433), (805, 24595), (4025, 4919)]