1969.000000

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{109}}^1$

素因数の和:136

約数の個数: 36

約数和(自身を含む): 777480

約数和(自身を除く): 376905

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 109, 147, 175, 245, 327, 525, 545, 735, 763, 1225, 1635, 2289, 2725, 3675, 3815, 5341, 8175, 11445, 16023, 19075, 26705, 57225, 80115, 133525, 400575]

約数ペア:

[(1, 400575), (3, 133525), (5, 80115), (7, 57225), (15, 26705), (21, 19075), (25, 16023), (35, 11445), (49, 8175), (75, 5341), (105, 3815), (109, 3675), (147, 2725), (175, 2289), (245, 1635), (327, 1225), (525, 763), (545, 735)]