667347340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^2\times {\mathrm{157}}^1$

素因数の和:455

約数の個数: 72

約数和(自身を含む): 1549718352

約数和(自身を除く): 882371012

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 157, 220, 278, 314, 556, 628, 695, 785, 1390, 1529, 1570, 1727, 2780, 3058, 3140, 3454, 6116, 6908, 7645, 8635, 15290, 17270, 19321, 21823, 30580, 34540, 38642, 43646, 77284, 87292, 96605, 109115, 193210, 212531, 218230, 240053, 386420, 425062, 436460, 480106, 850124, 960212, 1062655, 1200265, 2125310, 2400530, 3033397, 4250620, 4801060, 6066794, 12133588, 15166985, 30333970, 33367367, 60667940, 66734734, 133469468, 166836835, 333673670, 667347340]

約数ペア:

[(1, 667347340), (2, 333673670), (4, 166836835), (5, 133469468), (10, 66734734), (11, 60667940), (20, 33367367), (22, 30333970), (44, 15166985), (55, 12133588), (110, 6066794), (139, 4801060), (157, 4250620), (220, 3033397), (278, 2400530), (314, 2125310), (556, 1200265), (628, 1062655), (695, 960212), (785, 850124), (1390, 480106), (1529, 436460), (1570, 425062), (1727, 386420), (2780, 240053), (3058, 218230), (3140, 212531), (3454, 193210), (6116, 109115), (6908, 96605), (7645, 87292), (8635, 77284), (15290, 43646), (17270, 38642), (19321, 34540), (21823, 30580)]