311958872

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{991}}^1$

素因数の和:1144

約数の個数: 48

約数和(自身を含む): 623620800

約数和(自身を除く): 311661928

約数列:

[1, 2, 4, 8, 19, 38, 76, 109, 152, 218, 361, 436, 722, 872, 991, 1444, 1982, 2071, 2888, 3964, 4142, 7928, 8284, 16568, 18829, 37658, 39349, 75316, 78698, 108019, 150632, 157396, 216038, 314792, 357751, 432076, 715502, 864152, 1431004, 2052361, 2862008, 4104722, 8209444, 16418888, 38994859, 77989718, 155979436, 311958872]

約数ペア:

[(1, 311958872), (2, 155979436), (4, 77989718), (8, 38994859), (19, 16418888), (38, 8209444), (76, 4104722), (109, 2862008), (152, 2052361), (218, 1431004), (361, 864152), (436, 715502), (722, 432076), (872, 357751), (991, 314792), (1444, 216038), (1982, 157396), (2071, 150632), (2888, 108019), (3964, 78698), (4142, 75316), (7928, 39349), (8284, 37658), (16568, 18829)]