28000665

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8081}}^1$

素因数の和:8110

約数の個数: 48

約数和(自身を含む): 60518016

約数和(自身を除く): 32517351

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 8081, 24243, 40405, 56567, 72729, 88891, 121215, 169701, 266673, 282835, 363645, 444455, 509103, 622237, 800019, 848505, 1333365, 1866711, 2545515, 3111185, 4000095, 5600133, 9333555, 28000665]

約数ペア:

[(1, 28000665), (3, 9333555), (5, 5600133), (7, 4000095), (9, 3111185), (11, 2545515), (15, 1866711), (21, 1333365), (33, 848505), (35, 800019), (45, 622237), (55, 509103), (63, 444455), (77, 363645), (99, 282835), (105, 266673), (165, 169701), (231, 121215), (315, 88891), (385, 72729), (495, 56567), (693, 40405), (1155, 24243), (3465, 8081)]