31434040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{359}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 77760000

約数和(自身を除く): 46325960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 199, 220, 359, 398, 440, 718, 796, 995, 1436, 1592, 1795, 1990, 2189, 2872, 3590, 3949, 3980, 4378, 7180, 7898, 7960, 8756, 10945, 14360, 15796, 17512, 19745, 21890, 31592, 39490, 43780, 71441, 78980, 87560, 142882, 157960, 285764, 357205, 571528, 714410, 785851, 1428820, 1571702, 2857640, 3143404, 3929255, 6286808, 7858510, 15717020, 31434040]

約数ペア:

[(1, 31434040), (2, 15717020), (4, 7858510), (5, 6286808), (8, 3929255), (10, 3143404), (11, 2857640), (20, 1571702), (22, 1428820), (40, 785851), (44, 714410), (55, 571528), (88, 357205), (110, 285764), (199, 157960), (220, 142882), (359, 87560), (398, 78980), (440, 71441), (718, 43780), (796, 39490), (995, 31592), (1436, 21890), (1592, 19745), (1795, 17512), (1990, 15796), (2189, 14360), (2872, 10945), (3590, 8756), (3949, 7960), (3980, 7898), (4378, 7180)]