22488880

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2579}}^1$

素因数の和:2701

約数の個数: 40

約数和(自身を含む): 52786800

約数和(自身を除く): 30297920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 2579, 4360, 5158, 8720, 10316, 12895, 20632, 25790, 41264, 51580, 103160, 206320, 281111, 562222, 1124444, 1405555, 2248888, 2811110, 4497776, 5622220, 11244440, 22488880]

約数ペア:

[(1, 22488880), (2, 11244440), (4, 5622220), (5, 4497776), (8, 2811110), (10, 2248888), (16, 1405555), (20, 1124444), (40, 562222), (80, 281111), (109, 206320), (218, 103160), (436, 51580), (545, 41264), (872, 25790), (1090, 20632), (1744, 12895), (2180, 10316), (2579, 8720), (4360, 5158)]