198520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{709}}^1$

素因数の和:727

約数の個数: 32

約数和(自身を含む): 511200

約数和(自身を除く): 312680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 709, 1418, 2836, 3545, 4963, 5672, 7090, 9926, 14180, 19852, 24815, 28360, 39704, 49630, 99260, 198520]

約数ペア:

[(1, 198520), (2, 99260), (4, 49630), (5, 39704), (7, 28360), (8, 24815), (10, 19852), (14, 14180), (20, 9926), (28, 7090), (35, 5672), (40, 4963), (56, 3545), (70, 2836), (140, 1418), (280, 709)]