311671520

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{2027}}^1$

素因数の和:2104

約数の個数: 72

約数和(自身を含む): 761217912

約数和(自身を除く): 449546392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 961, 992, 1240, 1922, 2027, 2480, 3844, 4054, 4805, 4960, 7688, 8108, 9610, 10135, 15376, 16216, 19220, 20270, 30752, 32432, 38440, 40540, 62837, 64864, 76880, 81080, 125674, 153760, 162160, 251348, 314185, 324320, 502696, 628370, 1005392, 1256740, 1947947, 2010784, 2513480, 3895894, 5026960, 7791788, 9739735, 10053920, 15583576, 19479470, 31167152, 38958940, 62334304, 77917880, 155835760, 311671520]

約数ペア:

[(1, 311671520), (2, 155835760), (4, 77917880), (5, 62334304), (8, 38958940), (10, 31167152), (16, 19479470), (20, 15583576), (31, 10053920), (32, 9739735), (40, 7791788), (62, 5026960), (80, 3895894), (124, 2513480), (155, 2010784), (160, 1947947), (248, 1256740), (310, 1005392), (496, 628370), (620, 502696), (961, 324320), (992, 314185), (1240, 251348), (1922, 162160), (2027, 153760), (2480, 125674), (3844, 81080), (4054, 76880), (4805, 64864), (4960, 62837), (7688, 40540), (8108, 38440), (9610, 32432), (10135, 30752), (15376, 20270), (16216, 19220)]