20876543996

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{569}}^1\times {\mathrm{857}}^1$

素因数の和:1587

約数の個数: 96

約数和(自身を含む): 46010764800

約数和(自身を除く): 25134220804

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 139, 154, 278, 308, 556, 569, 857, 973, 1138, 1529, 1714, 1946, 2276, 3058, 3428, 3892, 3983, 5999, 6116, 6259, 7966, 9427, 10703, 11998, 12518, 15932, 18854, 21406, 23996, 25036, 37708, 42812, 43813, 65989, 79091, 87626, 119123, 131978, 158182, 175252, 238246, 263956, 316364, 476492, 487633, 553637, 833861, 870001, 975266, 1107274, 1310353, 1667722, 1740002, 1950532, 2214548, 2620706, 3335444, 3413431, 3480004, 5241412, 5363963, 6090007, 6826862, 9172471, 10727926, 12180014, 13653724, 18344942, 21455852, 24360028, 36689884, 37547741, 67780987, 75095482, 135561974, 150190964, 271123948, 474466909, 745590857, 948933818, 1491181714, 1897867636, 2982363428, 5219135999, 10438271998, 20876543996]

約数ペア:

[(1, 20876543996), (2, 10438271998), (4, 5219135999), (7, 2982363428), (11, 1897867636), (14, 1491181714), (22, 948933818), (28, 745590857), (44, 474466909), (77, 271123948), (139, 150190964), (154, 135561974), (278, 75095482), (308, 67780987), (556, 37547741), (569, 36689884), (857, 24360028), (973, 21455852), (1138, 18344942), (1529, 13653724), (1714, 12180014), (1946, 10727926), (2276, 9172471), (3058, 6826862), (3428, 6090007), (3892, 5363963), (3983, 5241412), (5999, 3480004), (6116, 3413431), (6259, 3335444), (7966, 2620706), (9427, 2214548), (10703, 1950532), (11998, 1740002), (12518, 1667722), (15932, 1310353), (18854, 1107274), (21406, 975266), (23996, 870001), (25036, 833861), (37708, 553637), (42812, 487633), (43813, 476492), (65989, 316364), (79091, 263956), (87626, 238246), (119123, 175252), (131978, 158182)]