2171680

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{277}}^1$

素因数の和:306

約数の個数: 72

約数和(自身を含む): 5989788

約数和(自身を除く): 3818108

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 277, 280, 392, 490, 554, 560, 784, 980, 1108, 1120, 1385, 1568, 1939, 1960, 2216, 2770, 3878, 3920, 4432, 5540, 7756, 7840, 8864, 9695, 11080, 13573, 15512, 19390, 22160, 27146, 31024, 38780, 44320, 54292, 62048, 67865, 77560, 108584, 135730, 155120, 217168, 271460, 310240, 434336, 542920, 1085840, 2171680]

約数ペア:

[(1, 2171680), (2, 1085840), (4, 542920), (5, 434336), (7, 310240), (8, 271460), (10, 217168), (14, 155120), (16, 135730), (20, 108584), (28, 77560), (32, 67865), (35, 62048), (40, 54292), (49, 44320), (56, 38780), (70, 31024), (80, 27146), (98, 22160), (112, 19390), (140, 15512), (160, 13573), (196, 11080), (224, 9695), (245, 8864), (277, 7840), (280, 7756), (392, 5540), (490, 4432), (554, 3920), (560, 3878), (784, 2770), (980, 2216), (1108, 1960), (1120, 1939), (1385, 1568)]