87869720

素因数分解:

$2^3\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{1811}}^1$

素因数の和:3035

約数の個数: 32

約数和(自身を含む): 197979120

約数和(自身を除く): 110109400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1213, 1811, 2426, 3622, 4852, 6065, 7244, 9055, 9704, 12130, 14488, 18110, 24260, 36220, 48520, 72440, 2196743, 4393486, 8786972, 10983715, 17573944, 21967430, 43934860, 87869720]

約数ペア:

[(1, 87869720), (2, 43934860), (4, 21967430), (5, 17573944), (8, 10983715), (10, 8786972), (20, 4393486), (40, 2196743), (1213, 72440), (1811, 48520), (2426, 36220), (3622, 24260), (4852, 18110), (6065, 14488), (7244, 12130), (9055, 9704)]