218351840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{27851}}^1$

素因数の和:27880

約数の個数: 72

約数和(自身を含む): 600099192

約数和(自身を除く): 381747352

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, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 27851, 55702, 111404, 139255, 194957, 222808, 278510, 389914, 445616, 557020, 779828, 891232, 974785, 1114040, 1364699, 1559656, 1949570, 2228080, 2729398, 3119312, 3899140, 4456160, 5458796, 6238624, 6823495, 7798280, 10917592, 13646990, 15596560, 21835184, 27293980, 31193120, 43670368, 54587960, 109175920, 218351840]

約数ペア:

[(1, 218351840), (2, 109175920), (4, 54587960), (5, 43670368), (7, 31193120), (8, 27293980), (10, 21835184), (14, 15596560), (16, 13646990), (20, 10917592), (28, 7798280), (32, 6823495), (35, 6238624), (40, 5458796), (49, 4456160), (56, 3899140), (70, 3119312), (80, 2729398), (98, 2228080), (112, 1949570), (140, 1559656), (160, 1364699), (196, 1114040), (224, 974785), (245, 891232), (280, 779828), (392, 557020), (490, 445616), (560, 389914), (784, 278510), (980, 222808), (1120, 194957), (1568, 139255), (1960, 111404), (3920, 55702), (7840, 27851)]