219527980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{4493}}^1$

素因数の和:4858

約数の個数: 48

約数和(自身を含む): 528494400

約数和(自身を除く): 308966420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 349, 698, 1396, 1745, 2443, 3490, 4493, 4886, 6980, 8986, 9772, 12215, 17972, 22465, 24430, 31451, 44930, 48860, 62902, 89860, 125804, 157255, 314510, 629020, 1568057, 3136114, 6272228, 7840285, 10976399, 15680570, 21952798, 31361140, 43905596, 54881995, 109763990, 219527980]

約数ペア:

[(1, 219527980), (2, 109763990), (4, 54881995), (5, 43905596), (7, 31361140), (10, 21952798), (14, 15680570), (20, 10976399), (28, 7840285), (35, 6272228), (70, 3136114), (140, 1568057), (349, 629020), (698, 314510), (1396, 157255), (1745, 125804), (2443, 89860), (3490, 62902), (4493, 48860), (4886, 44930), (6980, 31451), (8986, 24430), (9772, 22465), (12215, 17972)]