18551680

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:168

約数の個数: 128

約数和(自身を含む): 52436160

約数和(自身を除く): 33884480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 64, 70, 80, 82, 101, 112, 128, 140, 160, 164, 202, 205, 224, 280, 287, 320, 328, 404, 410, 448, 505, 560, 574, 640, 656, 707, 808, 820, 896, 1010, 1120, 1148, 1312, 1414, 1435, 1616, 1640, 2020, 2240, 2296, 2624, 2828, 2870, 3232, 3280, 3535, 4040, 4141, 4480, 4592, 5248, 5656, 5740, 6464, 6560, 7070, 8080, 8282, 9184, 11312, 11480, 12928, 13120, 14140, 16160, 16564, 18368, 20705, 22624, 22960, 26240, 28280, 28987, 32320, 33128, 36736, 41410, 45248, 45920, 56560, 57974, 64640, 66256, 82820, 90496, 91840, 113120, 115948, 132512, 144935, 165640, 183680, 226240, 231896, 265024, 289870, 331280, 452480, 463792, 530048, 579740, 662560, 927584, 1159480, 1325120, 1855168, 2318960, 2650240, 3710336, 4637920, 9275840, 18551680]

約数ペア:

[(1, 18551680), (2, 9275840), (4, 4637920), (5, 3710336), (7, 2650240), (8, 2318960), (10, 1855168), (14, 1325120), (16, 1159480), (20, 927584), (28, 662560), (32, 579740), (35, 530048), (40, 463792), (41, 452480), (56, 331280), (64, 289870), (70, 265024), (80, 231896), (82, 226240), (101, 183680), (112, 165640), (128, 144935), (140, 132512), (160, 115948), (164, 113120), (202, 91840), (205, 90496), (224, 82820), (280, 66256), (287, 64640), (320, 57974), (328, 56560), (404, 45920), (410, 45248), (448, 41410), (505, 36736), (560, 33128), (574, 32320), (640, 28987), (656, 28280), (707, 26240), (808, 22960), (820, 22624), (896, 20705), (1010, 18368), (1120, 16564), (1148, 16160), (1312, 14140), (1414, 13120), (1435, 12928), (1616, 11480), (1640, 11312), (2020, 9184), (2240, 8282), (2296, 8080), (2624, 7070), (2828, 6560), (2870, 6464), (3232, 5740), (3280, 5656), (3535, 5248), (4040, 4592), (4141, 4480)]