18361840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{32789}}^1$

素因数の和:32809

約数の個数: 40

約数和(自身を含む): 48791520

約数和(自身を除く): 30429680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 32789, 65578, 131156, 163945, 229523, 262312, 327890, 459046, 524624, 655780, 918092, 1147615, 1311560, 1836184, 2295230, 2623120, 3672368, 4590460, 9180920, 18361840]

約数ペア:

[(1, 18361840), (2, 9180920), (4, 4590460), (5, 3672368), (7, 2623120), (8, 2295230), (10, 1836184), (14, 1311560), (16, 1147615), (20, 918092), (28, 655780), (35, 524624), (40, 459046), (56, 327890), (70, 262312), (80, 229523), (112, 163945), (140, 131156), (280, 65578), (560, 32789)]