217354175

素因数分解:

$5^2\times {\mathrm{31}}^2\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:264

約数の個数: 36

約数和(自身を含む): 284434920

約数和(自身を除く): 67080745

約数列:

[1, 5, 25, 31, 83, 109, 155, 415, 545, 775, 961, 2075, 2573, 2725, 3379, 4805, 9047, 12865, 16895, 24025, 45235, 64325, 79763, 84475, 104749, 226175, 280457, 398815, 523745, 1402285, 1994075, 2618725, 7011425, 8694167, 43470835, 217354175]

約数ペア:

[(1, 217354175), (5, 43470835), (25, 8694167), (31, 7011425), (83, 2618725), (109, 1994075), (155, 1402285), (415, 523745), (545, 398815), (775, 280457), (961, 226175), (2075, 104749), (2573, 84475), (2725, 79763), (3379, 64325), (4805, 45235), (9047, 24025), (12865, 16895)]