28996660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1037

約数の個数: 96

約数和(自身を含む): 79994880

約数和(自身を除く): 50998220

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 55, 70, 76, 77, 95, 110, 133, 140, 154, 190, 209, 220, 266, 308, 380, 385, 418, 532, 665, 770, 836, 991, 1045, 1330, 1463, 1540, 1982, 2090, 2660, 2926, 3964, 4180, 4955, 5852, 6937, 7315, 9910, 10901, 13874, 14630, 18829, 19820, 21802, 27748, 29260, 34685, 37658, 43604, 54505, 69370, 75316, 76307, 94145, 109010, 131803, 138740, 152614, 188290, 207119, 218020, 263606, 305228, 376580, 381535, 414238, 527212, 659015, 763070, 828476, 1035595, 1318030, 1449833, 1526140, 2071190, 2636060, 2899666, 4142380, 5799332, 7249165, 14498330, 28996660]

約数ペア:

[(1, 28996660), (2, 14498330), (4, 7249165), (5, 5799332), (7, 4142380), (10, 2899666), (11, 2636060), (14, 2071190), (19, 1526140), (20, 1449833), (22, 1318030), (28, 1035595), (35, 828476), (38, 763070), (44, 659015), (55, 527212), (70, 414238), (76, 381535), (77, 376580), (95, 305228), (110, 263606), (133, 218020), (140, 207119), (154, 188290), (190, 152614), (209, 138740), (220, 131803), (266, 109010), (308, 94145), (380, 76307), (385, 75316), (418, 69370), (532, 54505), (665, 43604), (770, 37658), (836, 34685), (991, 29260), (1045, 27748), (1330, 21802), (1463, 19820), (1540, 18829), (1982, 14630), (2090, 13874), (2660, 10901), (2926, 9910), (3964, 7315), (4180, 6937), (4955, 5852)]