631271280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:431

約数の個数: 160

約数和(自身を含む): 1999872000

約数和(自身を除く): 1368600720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 127, 139, 149, 240, 254, 278, 298, 381, 417, 447, 508, 556, 596, 635, 695, 745, 762, 834, 894, 1016, 1112, 1192, 1270, 1390, 1490, 1524, 1668, 1788, 1905, 2032, 2085, 2224, 2235, 2384, 2540, 2780, 2980, 3048, 3336, 3576, 3810, 4170, 4470, 5080, 5560, 5960, 6096, 6672, 7152, 7620, 8340, 8940, 10160, 11120, 11920, 15240, 16680, 17653, 17880, 18923, 20711, 30480, 33360, 35306, 35760, 37846, 41422, 52959, 56769, 62133, 70612, 75692, 82844, 88265, 94615, 103555, 105918, 113538, 124266, 141224, 151384, 165688, 176530, 189230, 207110, 211836, 227076, 248532, 264795, 282448, 283845, 302768, 310665, 331376, 353060, 378460, 414220, 423672, 454152, 497064, 529590, 567690, 621330, 706120, 756920, 828440, 847344, 908304, 994128, 1059180, 1135380, 1242660, 1412240, 1513840, 1656880, 2118360, 2270760, 2485320, 2630297, 4236720, 4541520, 4970640, 5260594, 7890891, 10521188, 13151485, 15781782, 21042376, 26302970, 31563564, 39454455, 42084752, 52605940, 63127128, 78908910, 105211880, 126254256, 157817820, 210423760, 315635640, 631271280]

約数ペア:

[(1, 631271280), (2, 315635640), (3, 210423760), (4, 157817820), (5, 126254256), (6, 105211880), (8, 78908910), (10, 63127128), (12, 52605940), (15, 42084752), (16, 39454455), (20, 31563564), (24, 26302970), (30, 21042376), (40, 15781782), (48, 13151485), (60, 10521188), (80, 7890891), (120, 5260594), (127, 4970640), (139, 4541520), (149, 4236720), (240, 2630297), (254, 2485320), (278, 2270760), (298, 2118360), (381, 1656880), (417, 1513840), (447, 1412240), (508, 1242660), (556, 1135380), (596, 1059180), (635, 994128), (695, 908304), (745, 847344), (762, 828440), (834, 756920), (894, 706120), (1016, 621330), (1112, 567690), (1192, 529590), (1270, 497064), (1390, 454152), (1490, 423672), (1524, 414220), (1668, 378460), (1788, 353060), (1905, 331376), (2032, 310665), (2085, 302768), (2224, 283845), (2235, 282448), (2384, 264795), (2540, 248532), (2780, 227076), (2980, 211836), (3048, 207110), (3336, 189230), (3576, 176530), (3810, 165688), (4170, 151384), (4470, 141224), (5080, 124266), (5560, 113538), (5960, 105918), (6096, 103555), (6672, 94615), (7152, 88265), (7620, 82844), (8340, 75692), (8940, 70612), (10160, 62133), (11120, 56769), (11920, 52959), (15240, 41422), (16680, 37846), (17653, 35760), (17880, 35306), (18923, 33360), (20711, 30480)]