19943875

素因数分解:

$5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{991}}^1$

素因数の和:1036

約数の個数: 32

約数和(自身を含む): 29712384

約数和(自身を除く): 9768509

約数列:

[1, 5, 7, 23, 25, 35, 115, 125, 161, 175, 575, 805, 875, 991, 2875, 4025, 4955, 6937, 20125, 22793, 24775, 34685, 113965, 123875, 159551, 173425, 569825, 797755, 867125, 2849125, 3988775, 19943875]

約数ペア:

[(1, 19943875), (5, 3988775), (7, 2849125), (23, 867125), (25, 797755), (35, 569825), (115, 173425), (125, 159551), (161, 123875), (175, 113965), (575, 34685), (805, 24775), (875, 22793), (991, 20125), (2875, 6937), (4025, 4955)]