328720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{587}}^1$

素因数の和:607

約数の個数: 40

約数和(自身を含む): 874944

約数和(自身を除く): 546224

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 587, 1174, 2348, 2935, 4109, 4696, 5870, 8218, 9392, 11740, 16436, 20545, 23480, 32872, 41090, 46960, 65744, 82180, 164360, 328720]

約数ペア:

[(1, 328720), (2, 164360), (4, 82180), (5, 65744), (7, 46960), (8, 41090), (10, 32872), (14, 23480), (16, 20545), (20, 16436), (28, 11740), (35, 9392), (40, 8218), (56, 5870), (70, 4696), (80, 4109), (112, 2935), (140, 2348), (280, 1174), (560, 587)]