215423740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{4409}}^1$

素因数の和:4774

約数の個数: 48

約数和(自身を含む): 518616000

約数和(自身を除く): 303192260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 349, 698, 1396, 1745, 2443, 3490, 4409, 4886, 6980, 8818, 9772, 12215, 17636, 22045, 24430, 30863, 44090, 48860, 61726, 88180, 123452, 154315, 308630, 617260, 1538741, 3077482, 6154964, 7693705, 10771187, 15387410, 21542374, 30774820, 43084748, 53855935, 107711870, 215423740]

約数ペア:

[(1, 215423740), (2, 107711870), (4, 53855935), (5, 43084748), (7, 30774820), (10, 21542374), (14, 15387410), (20, 10771187), (28, 7693705), (35, 6154964), (70, 3077482), (140, 1538741), (349, 617260), (698, 308630), (1396, 154315), (1745, 123452), (2443, 88180), (3490, 61726), (4409, 48860), (4886, 44090), (6980, 30863), (8818, 24430), (9772, 22045), (12215, 17636)]