18391520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{16421}}^1$

素因数の和:16443

約数の個数: 48

約数和(自身を含む): 49660128

約数和(自身を除く): 31268608

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 16421, 32842, 65684, 82105, 114947, 131368, 164210, 229894, 262736, 328420, 459788, 525472, 574735, 656840, 919576, 1149470, 1313680, 1839152, 2298940, 2627360, 3678304, 4597880, 9195760, 18391520]

約数ペア:

[(1, 18391520), (2, 9195760), (4, 4597880), (5, 3678304), (7, 2627360), (8, 2298940), (10, 1839152), (14, 1313680), (16, 1149470), (20, 919576), (28, 656840), (32, 574735), (35, 525472), (40, 459788), (56, 328420), (70, 262736), (80, 229894), (112, 164210), (140, 131368), (160, 114947), (224, 82105), (280, 65684), (560, 32842), (1120, 16421)]