206984985

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 348328512

約数和(自身を除く): 141343527

約数列:

[1, 3, 5, 15, 31, 83, 93, 155, 173, 249, 415, 465, 519, 865, 961, 1245, 2573, 2595, 2883, 4805, 5363, 7719, 12865, 14359, 14415, 16089, 26815, 38595, 43077, 71795, 79763, 80445, 166253, 215385, 239289, 398815, 445129, 498759, 831265, 1196445, 1335387, 2225645, 2493795, 6676935, 13798999, 41396997, 68994995, 206984985]

約数ペア:

[(1, 206984985), (3, 68994995), (5, 41396997), (15, 13798999), (31, 6676935), (83, 2493795), (93, 2225645), (155, 1335387), (173, 1196445), (249, 831265), (415, 498759), (465, 445129), (519, 398815), (865, 239289), (961, 215385), (1245, 166253), (2573, 80445), (2595, 79763), (2883, 71795), (4805, 43077), (5363, 38595), (7719, 26815), (12865, 16089), (14359, 14415)]