208505040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{868771}}^1$

素因数の和:868787

約数の個数: 40

約数和(自身を含む): 646366368

約数和(自身を除く): 437861328

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 868771, 1737542, 2606313, 3475084, 4343855, 5212626, 6950168, 8687710, 10425252, 13031565, 13900336, 17375420, 20850504, 26063130, 34750840, 41701008, 52126260, 69501680, 104252520, 208505040]

約数ペア:

[(1, 208505040), (2, 104252520), (3, 69501680), (4, 52126260), (5, 41701008), (6, 34750840), (8, 26063130), (10, 20850504), (12, 17375420), (15, 13900336), (16, 13031565), (20, 10425252), (24, 8687710), (30, 6950168), (40, 5212626), (48, 4343855), (60, 3475084), (80, 2606313), (120, 1737542), (240, 868771)]