22168220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 48232800

約数和(自身を除く): 26064580

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 149, 172, 173, 215, 298, 346, 430, 596, 692, 745, 860, 865, 1490, 1730, 2980, 3460, 6407, 7439, 12814, 14878, 25628, 25777, 29756, 32035, 37195, 51554, 64070, 74390, 103108, 128140, 128885, 148780, 257770, 515540, 1108411, 2216822, 4433644, 5542055, 11084110, 22168220]

約数ペア:

[(1, 22168220), (2, 11084110), (4, 5542055), (5, 4433644), (10, 2216822), (20, 1108411), (43, 515540), (86, 257770), (149, 148780), (172, 128885), (173, 128140), (215, 103108), (298, 74390), (346, 64070), (430, 51554), (596, 37195), (692, 32035), (745, 29756), (860, 25777), (865, 25628), (1490, 14878), (1730, 12814), (2980, 7439), (3460, 6407)]