281313760

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^2$

素因数の和:313

約数の個数: 144

約数和(自身を含む): 823900896

約数和(自身を除く): 542587136

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 139, 140, 160, 182, 208, 224, 260, 278, 280, 364, 416, 455, 520, 556, 560, 695, 728, 910, 973, 1040, 1112, 1120, 1390, 1456, 1807, 1820, 1946, 2080, 2224, 2780, 2912, 3614, 3640, 3892, 4448, 4865, 5560, 7228, 7280, 7784, 9035, 9730, 11120, 12649, 14456, 14560, 15568, 18070, 19321, 19460, 22240, 25298, 28912, 31136, 36140, 38642, 38920, 50596, 57824, 63245, 72280, 77284, 77840, 96605, 101192, 126490, 135247, 144560, 154568, 155680, 193210, 202384, 251173, 252980, 270494, 289120, 309136, 386420, 404768, 502346, 505960, 540988, 618272, 676235, 772840, 1004692, 1011920, 1081976, 1255865, 1352470, 1545680, 1758211, 2009384, 2023840, 2163952, 2511730, 2704940, 3091360, 3516422, 4018768, 4327904, 5023460, 5409880, 7032844, 8037536, 8791055, 10046920, 10819760, 14065688, 17582110, 20093840, 21639520, 28131376, 35164220, 40187680, 56262752, 70328440, 140656880, 281313760]

約数ペア:

[(1, 281313760), (2, 140656880), (4, 70328440), (5, 56262752), (7, 40187680), (8, 35164220), (10, 28131376), (13, 21639520), (14, 20093840), (16, 17582110), (20, 14065688), (26, 10819760), (28, 10046920), (32, 8791055), (35, 8037536), (40, 7032844), (52, 5409880), (56, 5023460), (65, 4327904), (70, 4018768), (80, 3516422), (91, 3091360), (104, 2704940), (112, 2511730), (130, 2163952), (139, 2023840), (140, 2009384), (160, 1758211), (182, 1545680), (208, 1352470), (224, 1255865), (260, 1081976), (278, 1011920), (280, 1004692), (364, 772840), (416, 676235), (455, 618272), (520, 540988), (556, 505960), (560, 502346), (695, 404768), (728, 386420), (910, 309136), (973, 289120), (1040, 270494), (1112, 252980), (1120, 251173), (1390, 202384), (1456, 193210), (1807, 155680), (1820, 154568), (1946, 144560), (2080, 135247), (2224, 126490), (2780, 101192), (2912, 96605), (3614, 77840), (3640, 77284), (3892, 72280), (4448, 63245), (4865, 57824), (5560, 50596), (7228, 38920), (7280, 38642), (7784, 36140), (9035, 31136), (9730, 28912), (11120, 25298), (12649, 22240), (14456, 19460), (14560, 19321), (15568, 18070)]