399285040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1223}}^1$

素因数の和:1307

約数の個数: 160

約数和(自身を含む): 1180210176

約数和(自身を除く): 780925136

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 53, 55, 56, 70, 77, 80, 88, 106, 110, 112, 140, 154, 176, 212, 220, 265, 280, 308, 371, 385, 424, 440, 530, 560, 583, 616, 742, 770, 848, 880, 1060, 1166, 1223, 1232, 1484, 1540, 1855, 2120, 2332, 2446, 2915, 2968, 3080, 3710, 4081, 4240, 4664, 4892, 5830, 5936, 6115, 6160, 7420, 8162, 8561, 9328, 9784, 11660, 12230, 13453, 14840, 16324, 17122, 19568, 20405, 23320, 24460, 26906, 29680, 32648, 34244, 40810, 42805, 46640, 48920, 53812, 64819, 65296, 67265, 68488, 81620, 85610, 94171, 97840, 107624, 129638, 134530, 136976, 163240, 171220, 188342, 215248, 259276, 269060, 324095, 326480, 342440, 376684, 453733, 470855, 518552, 538120, 648190, 684880, 713009, 753368, 907466, 941710, 1037104, 1076240, 1296380, 1426018, 1506736, 1814932, 1883420, 2268665, 2592760, 2852036, 3565045, 3629864, 3766840, 4537330, 4991063, 5185520, 5704072, 7130090, 7259728, 7533680, 9074660, 9982126, 11408144, 14260180, 18149320, 19964252, 24955315, 28520360, 36298640, 39928504, 49910630, 57040720, 79857008, 99821260, 199642520, 399285040]

約数ペア:

[(1, 399285040), (2, 199642520), (4, 99821260), (5, 79857008), (7, 57040720), (8, 49910630), (10, 39928504), (11, 36298640), (14, 28520360), (16, 24955315), (20, 19964252), (22, 18149320), (28, 14260180), (35, 11408144), (40, 9982126), (44, 9074660), (53, 7533680), (55, 7259728), (56, 7130090), (70, 5704072), (77, 5185520), (80, 4991063), (88, 4537330), (106, 3766840), (110, 3629864), (112, 3565045), (140, 2852036), (154, 2592760), (176, 2268665), (212, 1883420), (220, 1814932), (265, 1506736), (280, 1426018), (308, 1296380), (371, 1076240), (385, 1037104), (424, 941710), (440, 907466), (530, 753368), (560, 713009), (583, 684880), (616, 648190), (742, 538120), (770, 518552), (848, 470855), (880, 453733), (1060, 376684), (1166, 342440), (1223, 326480), (1232, 324095), (1484, 269060), (1540, 259276), (1855, 215248), (2120, 188342), (2332, 171220), (2446, 163240), (2915, 136976), (2968, 134530), (3080, 129638), (3710, 107624), (4081, 97840), (4240, 94171), (4664, 85610), (4892, 81620), (5830, 68488), (5936, 67265), (6115, 65296), (6160, 64819), (7420, 53812), (8162, 48920), (8561, 46640), (9328, 42805), (9784, 40810), (11660, 34244), (12230, 32648), (13453, 29680), (14840, 26906), (16324, 24460), (17122, 23320), (19568, 20405)]