157866520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{563809}}^1$

素因数の和:563827

約数の個数: 32

約数和(自身を含む): 405943200

約数和(自身を除く): 248076680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 563809, 1127618, 2255236, 2819045, 3946663, 4510472, 5638090, 7893326, 11276180, 15786652, 19733315, 22552360, 31573304, 39466630, 78933260, 157866520]

約数ペア:

[(1, 157866520), (2, 78933260), (4, 39466630), (5, 31573304), (7, 22552360), (8, 19733315), (10, 15786652), (14, 11276180), (20, 7893326), (28, 5638090), (35, 4510472), (40, 3946663), (56, 2819045), (70, 2255236), (140, 1127618), (280, 563809)]