217044140

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{16619}}^1$

素因数の和:17281

約数の個数: 24

約数和(自身を含む): 456518160

約数和(自身を除く): 239474020

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 2612, 3265, 6530, 13060, 16619, 33238, 66476, 83095, 166190, 332380, 10852207, 21704414, 43408828, 54261035, 108522070, 217044140]

約数ペア:

[(1, 217044140), (2, 108522070), (4, 54261035), (5, 43408828), (10, 21704414), (20, 10852207), (653, 332380), (1306, 166190), (2612, 83095), (3265, 66476), (6530, 33238), (13060, 16619)]