87403960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{541}}^1\times {\mathrm{577}}^1$

素因数の和:1136

約数の個数: 64

約数和(自身を含む): 225558720

約数和(自身を除く): 138154760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 541, 577, 1082, 1154, 2164, 2308, 2705, 2885, 3787, 4039, 4328, 4616, 5410, 5770, 7574, 8078, 10820, 11540, 15148, 16156, 18935, 20195, 21640, 23080, 30296, 32312, 37870, 40390, 75740, 80780, 151480, 161560, 312157, 624314, 1248628, 1560785, 2185099, 2497256, 3121570, 4370198, 6243140, 8740396, 10925495, 12486280, 17480792, 21850990, 43701980, 87403960]

約数ペア:

[(1, 87403960), (2, 43701980), (4, 21850990), (5, 17480792), (7, 12486280), (8, 10925495), (10, 8740396), (14, 6243140), (20, 4370198), (28, 3121570), (35, 2497256), (40, 2185099), (56, 1560785), (70, 1248628), (140, 624314), (280, 312157), (541, 161560), (577, 151480), (1082, 80780), (1154, 75740), (2164, 40390), (2308, 37870), (2705, 32312), (2885, 30296), (3787, 23080), (4039, 21640), (4328, 20195), (4616, 18935), (5410, 16156), (5770, 15148), (7574, 11540), (8078, 10820)]