8400015

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 15960672

約数和(自身を除く): 7560657

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 83, 117, 173, 195, 249, 415, 519, 585, 747, 865, 1079, 1245, 1557, 2249, 2595, 3237, 3735, 5395, 6747, 7785, 9711, 11245, 14359, 16185, 20241, 33735, 43077, 48555, 71795, 101205, 129231, 186667, 215385, 560001, 646155, 933335, 1680003, 2800005, 8400015]

約数ペア:

[(1, 8400015), (3, 2800005), (5, 1680003), (9, 933335), (13, 646155), (15, 560001), (39, 215385), (45, 186667), (65, 129231), (83, 101205), (117, 71795), (173, 48555), (195, 43077), (249, 33735), (415, 20241), (519, 16185), (585, 14359), (747, 11245), (865, 9711), (1079, 7785), (1245, 6747), (1557, 5395), (2249, 3735), (2595, 3237)]