870345

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{307}}^1$

素因数の和:331

約数の個数: 40

約数和(自身を含む): 1788864

約数和(自身を除く): 918519

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 307, 315, 405, 567, 921, 945, 1535, 2149, 2763, 2835, 4605, 6447, 8289, 10745, 13815, 19341, 24867, 32235, 41445, 58023, 96705, 124335, 174069, 290115, 870345]

約数ペア:

[(1, 870345), (3, 290115), (5, 174069), (7, 124335), (9, 96705), (15, 58023), (21, 41445), (27, 32235), (35, 24867), (45, 19341), (63, 13815), (81, 10745), (105, 8289), (135, 6447), (189, 4605), (307, 2835), (315, 2763), (405, 2149), (567, 1535), (921, 945)]