1989775

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:159

約数の個数: 24

約数和(自身を含む): 2678400

約数和(自身を除く): 688625

約数列:

[1, 5, 19, 25, 59, 71, 95, 295, 355, 475, 1121, 1349, 1475, 1775, 4189, 5605, 6745, 20945, 28025, 33725, 79591, 104725, 397955, 1989775]

約数ペア:

[(1, 1989775), (5, 397955), (19, 104725), (25, 79591), (59, 33725), (71, 28025), (95, 20945), (295, 6745), (355, 5605), (475, 4189), (1121, 1775), (1349, 1475)]