1997495280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{252209}}^1$

素因数の和:252239

約数の個数: 120

約数和(自身を含む): 7318125360

約数和(自身を除く): 5320630080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 3960, 7920, 252209, 504418, 756627, 1008836, 1261045, 1513254, 2017672, 2269881, 2522090, 2774299, 3026508, 3783135, 4035344, 4539762, 5044180, 5548598, 6053016, 7566270, 8322897, 9079524, 10088360, 11097196, 11349405, 12106032, 13871495, 15132540, 16645794, 18159048, 20176720, 22194392, 22698810, 24968691, 27742990, 30265080, 33291588, 36318096, 41614485, 44388784, 45397620, 49937382, 55485980, 60530160, 66583176, 83228970, 90795240, 99874764, 110971960, 124843455, 133166352, 166457940, 181590480, 199749528, 221943920, 249686910, 332915880, 399499056, 499373820, 665831760, 998747640, 1997495280]

約数ペア:

[(1, 1997495280), (2, 998747640), (3, 665831760), (4, 499373820), (5, 399499056), (6, 332915880), (8, 249686910), (9, 221943920), (10, 199749528), (11, 181590480), (12, 166457940), (15, 133166352), (16, 124843455), (18, 110971960), (20, 99874764), (22, 90795240), (24, 83228970), (30, 66583176), (33, 60530160), (36, 55485980), (40, 49937382), (44, 45397620), (45, 44388784), (48, 41614485), (55, 36318096), (60, 33291588), (66, 30265080), (72, 27742990), (80, 24968691), (88, 22698810), (90, 22194392), (99, 20176720), (110, 18159048), (120, 16645794), (132, 15132540), (144, 13871495), (165, 12106032), (176, 11349405), (180, 11097196), (198, 10088360), (220, 9079524), (240, 8322897), (264, 7566270), (330, 6053016), (360, 5548598), (396, 5044180), (440, 4539762), (495, 4035344), (528, 3783135), (660, 3026508), (720, 2774299), (792, 2522090), (880, 2269881), (990, 2017672), (1320, 1513254), (1584, 1261045), (1980, 1008836), (2640, 756627), (3960, 504418), (7920, 252209)]