18968320

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:130

約数の個数: 144

約数和(自身を含む): 54452160

約数和(自身を除く): 35483840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 73, 80, 112, 116, 128, 140, 145, 146, 160, 203, 224, 232, 256, 280, 290, 292, 320, 365, 406, 448, 464, 511, 560, 580, 584, 640, 730, 812, 896, 928, 1015, 1022, 1120, 1160, 1168, 1280, 1460, 1624, 1792, 1856, 2030, 2044, 2117, 2240, 2320, 2336, 2555, 2920, 3248, 3712, 4060, 4088, 4234, 4480, 4640, 4672, 5110, 5840, 6496, 7424, 8120, 8176, 8468, 8960, 9280, 9344, 10220, 10585, 11680, 12992, 14819, 16240, 16352, 16936, 18560, 18688, 20440, 21170, 23360, 25984, 29638, 32480, 32704, 33872, 37120, 40880, 42340, 46720, 51968, 59276, 64960, 65408, 67744, 74095, 81760, 84680, 93440, 118552, 129920, 130816, 135488, 148190, 163520, 169360, 237104, 259840, 270976, 296380, 327040, 338720, 474208, 541952, 592760, 654080, 677440, 948416, 1185520, 1354880, 1896832, 2371040, 2709760, 3793664, 4742080, 9484160, 18968320]

約数ペア:

[(1, 18968320), (2, 9484160), (4, 4742080), (5, 3793664), (7, 2709760), (8, 2371040), (10, 1896832), (14, 1354880), (16, 1185520), (20, 948416), (28, 677440), (29, 654080), (32, 592760), (35, 541952), (40, 474208), (56, 338720), (58, 327040), (64, 296380), (70, 270976), (73, 259840), (80, 237104), (112, 169360), (116, 163520), (128, 148190), (140, 135488), (145, 130816), (146, 129920), (160, 118552), (203, 93440), (224, 84680), (232, 81760), (256, 74095), (280, 67744), (290, 65408), (292, 64960), (320, 59276), (365, 51968), (406, 46720), (448, 42340), (464, 40880), (511, 37120), (560, 33872), (580, 32704), (584, 32480), (640, 29638), (730, 25984), (812, 23360), (896, 21170), (928, 20440), (1015, 18688), (1022, 18560), (1120, 16936), (1160, 16352), (1168, 16240), (1280, 14819), (1460, 12992), (1624, 11680), (1792, 10585), (1856, 10220), (2030, 9344), (2044, 9280), (2117, 8960), (2240, 8468), (2320, 8176), (2336, 8120), (2555, 7424), (2920, 6496), (3248, 5840), (3712, 5110), (4060, 4672), (4088, 4640), (4234, 4480)]