81371808

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{223}}^1$

素因数の和:427

約数の個数: 144

約数和(自身を含む): 267111936

約数和(自身を除く): 185740128

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 181, 223, 224, 252, 288, 336, 362, 446, 504, 543, 669, 672, 724, 892, 1008, 1086, 1267, 1338, 1448, 1561, 1629, 1784, 2007, 2016, 2172, 2534, 2676, 2896, 3122, 3258, 3568, 3801, 4014, 4344, 4683, 5068, 5352, 5792, 6244, 6516, 7136, 7602, 8028, 8688, 9366, 10136, 10704, 11403, 12488, 13032, 14049, 15204, 16056, 17376, 18732, 20272, 21408, 22806, 24976, 26064, 28098, 30408, 32112, 37464, 40363, 40544, 45612, 49952, 52128, 56196, 60816, 64224, 74928, 80726, 91224, 112392, 121089, 121632, 149856, 161452, 182448, 224784, 242178, 282541, 322904, 363267, 364896, 449568, 484356, 565082, 645808, 726534, 847623, 968712, 1130164, 1291616, 1453068, 1695246, 1937424, 2260328, 2542869, 2906136, 3390492, 3874848, 4520656, 5085738, 5812272, 6780984, 9041312, 10171476, 11624544, 13561968, 20342952, 27123936, 40685904, 81371808]

約数ペア:

[(1, 81371808), (2, 40685904), (3, 27123936), (4, 20342952), (6, 13561968), (7, 11624544), (8, 10171476), (9, 9041312), (12, 6780984), (14, 5812272), (16, 5085738), (18, 4520656), (21, 3874848), (24, 3390492), (28, 2906136), (32, 2542869), (36, 2260328), (42, 1937424), (48, 1695246), (56, 1453068), (63, 1291616), (72, 1130164), (84, 968712), (96, 847623), (112, 726534), (126, 645808), (144, 565082), (168, 484356), (181, 449568), (223, 364896), (224, 363267), (252, 322904), (288, 282541), (336, 242178), (362, 224784), (446, 182448), (504, 161452), (543, 149856), (669, 121632), (672, 121089), (724, 112392), (892, 91224), (1008, 80726), (1086, 74928), (1267, 64224), (1338, 60816), (1448, 56196), (1561, 52128), (1629, 49952), (1784, 45612), (2007, 40544), (2016, 40363), (2172, 37464), (2534, 32112), (2676, 30408), (2896, 28098), (3122, 26064), (3258, 24976), (3568, 22806), (3801, 21408), (4014, 20272), (4344, 18732), (4683, 17376), (5068, 16056), (5352, 15204), (5792, 14049), (6244, 13032), (6516, 12488), (7136, 11403), (7602, 10704), (8028, 10136), (8688, 9366)]