18448640

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 144

約数和(自身を含む): 52980480

約数和(自身を除く): 34531840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 71, 80, 112, 116, 128, 140, 142, 145, 160, 203, 224, 232, 256, 280, 284, 290, 320, 355, 406, 448, 464, 497, 560, 568, 580, 640, 710, 812, 896, 928, 994, 1015, 1120, 1136, 1160, 1280, 1420, 1624, 1792, 1856, 1988, 2030, 2059, 2240, 2272, 2320, 2485, 2840, 3248, 3712, 3976, 4060, 4118, 4480, 4544, 4640, 4970, 5680, 6496, 7424, 7952, 8120, 8236, 8960, 9088, 9280, 9940, 10295, 11360, 12992, 14413, 15904, 16240, 16472, 18176, 18560, 19880, 20590, 22720, 25984, 28826, 31808, 32480, 32944, 37120, 39760, 41180, 45440, 51968, 57652, 63616, 64960, 65888, 72065, 79520, 82360, 90880, 115304, 127232, 129920, 131776, 144130, 159040, 164720, 230608, 259840, 263552, 288260, 318080, 329440, 461216, 527104, 576520, 636160, 658880, 922432, 1153040, 1317760, 1844864, 2306080, 2635520, 3689728, 4612160, 9224320, 18448640]

約数ペア:

[(1, 18448640), (2, 9224320), (4, 4612160), (5, 3689728), (7, 2635520), (8, 2306080), (10, 1844864), (14, 1317760), (16, 1153040), (20, 922432), (28, 658880), (29, 636160), (32, 576520), (35, 527104), (40, 461216), (56, 329440), (58, 318080), (64, 288260), (70, 263552), (71, 259840), (80, 230608), (112, 164720), (116, 159040), (128, 144130), (140, 131776), (142, 129920), (145, 127232), (160, 115304), (203, 90880), (224, 82360), (232, 79520), (256, 72065), (280, 65888), (284, 64960), (290, 63616), (320, 57652), (355, 51968), (406, 45440), (448, 41180), (464, 39760), (497, 37120), (560, 32944), (568, 32480), (580, 31808), (640, 28826), (710, 25984), (812, 22720), (896, 20590), (928, 19880), (994, 18560), (1015, 18176), (1120, 16472), (1136, 16240), (1160, 15904), (1280, 14413), (1420, 12992), (1624, 11360), (1792, 10295), (1856, 9940), (1988, 9280), (2030, 9088), (2059, 8960), (2240, 8236), (2272, 8120), (2320, 7952), (2485, 7424), (2840, 6496), (3248, 5680), (3712, 4970), (3976, 4640), (4060, 4544), (4118, 4480)]