251567120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{449227}}^1$

素因数の和:449247

約数の個数: 40

約数和(自身を含む): 668451264

約数和(自身を除く): 416884144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 449227, 898454, 1796908, 2246135, 3144589, 3593816, 4492270, 6289178, 7187632, 8984540, 12578356, 15722945, 17969080, 25156712, 31445890, 35938160, 50313424, 62891780, 125783560, 251567120]

約数ペア:

[(1, 251567120), (2, 125783560), (4, 62891780), (5, 50313424), (7, 35938160), (8, 31445890), (10, 25156712), (14, 17969080), (16, 15722945), (20, 12578356), (28, 8984540), (35, 7187632), (40, 6289178), (56, 4492270), (70, 3593816), (80, 3144589), (112, 2246135), (140, 1796908), (280, 898454), (560, 449227)]