221817920

素因数分解:

$2^6\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1579}}^1$

素因数の和:2035

約数の個数: 56

約数和(自身を含む): 529742400

約数和(自身を除く): 307924480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 439, 878, 1579, 1756, 2195, 3158, 3512, 4390, 6316, 7024, 7895, 8780, 12632, 14048, 15790, 17560, 25264, 28096, 31580, 35120, 50528, 63160, 70240, 101056, 126320, 140480, 252640, 505280, 693181, 1386362, 2772724, 3465905, 5545448, 6931810, 11090896, 13863620, 22181792, 27727240, 44363584, 55454480, 110908960, 221817920]

約数ペア:

[(1, 221817920), (2, 110908960), (4, 55454480), (5, 44363584), (8, 27727240), (10, 22181792), (16, 13863620), (20, 11090896), (32, 6931810), (40, 5545448), (64, 3465905), (80, 2772724), (160, 1386362), (320, 693181), (439, 505280), (878, 252640), (1579, 140480), (1756, 126320), (2195, 101056), (3158, 70240), (3512, 63160), (4390, 50528), (6316, 35120), (7024, 31580), (7895, 28096), (8780, 25264), (12632, 17560), (14048, 15790)]