309491840

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 192

約数和(自身を含む): 879076800

約数和(自身を除く): 569584960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 71, 80, 98, 112, 128, 139, 140, 142, 160, 196, 224, 245, 278, 280, 284, 320, 355, 392, 448, 490, 497, 556, 560, 568, 640, 695, 710, 784, 896, 973, 980, 994, 1112, 1120, 1136, 1390, 1420, 1568, 1946, 1960, 1988, 2224, 2240, 2272, 2485, 2780, 2840, 3136, 3479, 3892, 3920, 3976, 4448, 4480, 4544, 4865, 4970, 5560, 5680, 6272, 6811, 6958, 7784, 7840, 7952, 8896, 9088, 9730, 9869, 9940, 11120, 11360, 13622, 13916, 15568, 15680, 15904, 17395, 17792, 19460, 19738, 19880, 22240, 22720, 27244, 27832, 31136, 31360, 31808, 34055, 34790, 38920, 39476, 39760, 44480, 45440, 49345, 54488, 55664, 62272, 63616, 68110, 69083, 69580, 77840, 78952, 79520, 88960, 98690, 108976, 111328, 124544, 136220, 138166, 139160, 155680, 157904, 159040, 197380, 217952, 222656, 272440, 276332, 278320, 311360, 315808, 318080, 345415, 394760, 435904, 445312, 483581, 544880, 552664, 556640, 622720, 631616, 690830, 789520, 871808, 967162, 1089760, 1105328, 1113280, 1263232, 1381660, 1579040, 1934324, 2179520, 2210656, 2226560, 2417905, 2763320, 3158080, 3868648, 4359040, 4421312, 4835810, 5526640, 6316160, 7737296, 8842624, 9671620, 11053280, 15474592, 19343240, 22106560, 30949184, 38686480, 44213120, 61898368, 77372960, 154745920, 309491840]

約数ペア:

[(1, 309491840), (2, 154745920), (4, 77372960), (5, 61898368), (7, 44213120), (8, 38686480), (10, 30949184), (14, 22106560), (16, 19343240), (20, 15474592), (28, 11053280), (32, 9671620), (35, 8842624), (40, 7737296), (49, 6316160), (56, 5526640), (64, 4835810), (70, 4421312), (71, 4359040), (80, 3868648), (98, 3158080), (112, 2763320), (128, 2417905), (139, 2226560), (140, 2210656), (142, 2179520), (160, 1934324), (196, 1579040), (224, 1381660), (245, 1263232), (278, 1113280), (280, 1105328), (284, 1089760), (320, 967162), (355, 871808), (392, 789520), (448, 690830), (490, 631616), (497, 622720), (556, 556640), (560, 552664), (568, 544880), (640, 483581), (695, 445312), (710, 435904), (784, 394760), (896, 345415), (973, 318080), (980, 315808), (994, 311360), (1112, 278320), (1120, 276332), (1136, 272440), (1390, 222656), (1420, 217952), (1568, 197380), (1946, 159040), (1960, 157904), (1988, 155680), (2224, 139160), (2240, 138166), (2272, 136220), (2485, 124544), (2780, 111328), (2840, 108976), (3136, 98690), (3479, 88960), (3892, 79520), (3920, 78952), (3976, 77840), (4448, 69580), (4480, 69083), (4544, 68110), (4865, 63616), (4970, 62272), (5560, 55664), (5680, 54488), (6272, 49345), (6811, 45440), (6958, 44480), (7784, 39760), (7840, 39476), (7952, 38920), (8896, 34790), (9088, 34055), (9730, 31808), (9869, 31360), (9940, 31136), (11120, 27832), (11360, 27244), (13622, 22720), (13916, 22240), (15568, 19880), (15680, 19738), (15904, 19460), (17395, 17792)]