20465048960

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{7547}}^1$

素因数の和:7808

約数の個数: 128

約数和(自身を含む): 51737011200

約数和(自身を除く): 31271962240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 223, 304, 320, 380, 446, 608, 640, 760, 892, 1115, 1216, 1520, 1784, 2230, 2432, 3040, 3568, 4237, 4460, 6080, 7136, 7547, 8474, 8920, 12160, 14272, 15094, 16948, 17840, 21185, 28544, 30188, 33896, 35680, 37735, 42370, 60376, 67792, 71360, 75470, 84740, 120752, 135584, 142720, 143393, 150940, 169480, 241504, 271168, 286786, 301880, 338960, 483008, 542336, 573572, 603760, 677920, 716965, 966016, 1147144, 1207520, 1355840, 1433930, 1682981, 2294288, 2415040, 2711680, 2867860, 3365962, 4588576, 4830080, 5735720, 6731924, 8414905, 9177152, 11471440, 13463848, 16829810, 18354304, 22942880, 26927696, 31976639, 33659620, 45885760, 53855392, 63953278, 67319240, 91771520, 107710784, 127906556, 134638480, 159883195, 215421568, 255813112, 269276960, 319766390, 511626224, 538553920, 639532780, 1023252448, 1077107840, 1279065560, 2046504896, 2558131120, 4093009792, 5116262240, 10232524480, 20465048960]

約数ペア:

[(1, 20465048960), (2, 10232524480), (4, 5116262240), (5, 4093009792), (8, 2558131120), (10, 2046504896), (16, 1279065560), (19, 1077107840), (20, 1023252448), (32, 639532780), (38, 538553920), (40, 511626224), (64, 319766390), (76, 269276960), (80, 255813112), (95, 215421568), (128, 159883195), (152, 134638480), (160, 127906556), (190, 107710784), (223, 91771520), (304, 67319240), (320, 63953278), (380, 53855392), (446, 45885760), (608, 33659620), (640, 31976639), (760, 26927696), (892, 22942880), (1115, 18354304), (1216, 16829810), (1520, 13463848), (1784, 11471440), (2230, 9177152), (2432, 8414905), (3040, 6731924), (3568, 5735720), (4237, 4830080), (4460, 4588576), (6080, 3365962), (7136, 2867860), (7547, 2711680), (8474, 2415040), (8920, 2294288), (12160, 1682981), (14272, 1433930), (15094, 1355840), (16948, 1207520), (17840, 1147144), (21185, 966016), (28544, 716965), (30188, 677920), (33896, 603760), (35680, 573572), (37735, 542336), (42370, 483008), (60376, 338960), (67792, 301880), (71360, 286786), (75470, 271168), (84740, 241504), (120752, 169480), (135584, 150940), (142720, 143393)]