38913280

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:172

約数の個数: 144

約数和(自身を含む): 110081664

約数和(自身を除く): 71168384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 64, 70, 80, 86, 101, 112, 128, 140, 160, 172, 202, 215, 224, 256, 280, 301, 320, 344, 404, 430, 448, 505, 560, 602, 640, 688, 707, 808, 860, 896, 1010, 1120, 1204, 1280, 1376, 1414, 1505, 1616, 1720, 1792, 2020, 2240, 2408, 2752, 2828, 3010, 3232, 3440, 3535, 4040, 4343, 4480, 4816, 5504, 5656, 6020, 6464, 6880, 7070, 8080, 8686, 8960, 9632, 11008, 11312, 12040, 12928, 13760, 14140, 16160, 17372, 19264, 21715, 22624, 24080, 25856, 27520, 28280, 30401, 32320, 34744, 38528, 43430, 45248, 48160, 55040, 56560, 60802, 64640, 69488, 77056, 86860, 90496, 96320, 113120, 121604, 129280, 138976, 152005, 173720, 180992, 192640, 226240, 243208, 277952, 304010, 347440, 385280, 452480, 486416, 555904, 608020, 694880, 904960, 972832, 1111808, 1216040, 1389760, 1945664, 2432080, 2779520, 3891328, 4864160, 5559040, 7782656, 9728320, 19456640, 38913280]

約数ペア:

[(1, 38913280), (2, 19456640), (4, 9728320), (5, 7782656), (7, 5559040), (8, 4864160), (10, 3891328), (14, 2779520), (16, 2432080), (20, 1945664), (28, 1389760), (32, 1216040), (35, 1111808), (40, 972832), (43, 904960), (56, 694880), (64, 608020), (70, 555904), (80, 486416), (86, 452480), (101, 385280), (112, 347440), (128, 304010), (140, 277952), (160, 243208), (172, 226240), (202, 192640), (215, 180992), (224, 173720), (256, 152005), (280, 138976), (301, 129280), (320, 121604), (344, 113120), (404, 96320), (430, 90496), (448, 86860), (505, 77056), (560, 69488), (602, 64640), (640, 60802), (688, 56560), (707, 55040), (808, 48160), (860, 45248), (896, 43430), (1010, 38528), (1120, 34744), (1204, 32320), (1280, 30401), (1376, 28280), (1414, 27520), (1505, 25856), (1616, 24080), (1720, 22624), (1792, 21715), (2020, 19264), (2240, 17372), (2408, 16160), (2752, 14140), (2828, 13760), (3010, 12928), (3232, 12040), (3440, 11312), (3535, 11008), (4040, 9632), (4343, 8960), (4480, 8686), (4816, 8080), (5504, 7070), (5656, 6880), (6020, 6464)]