20512073450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1\times {\mathrm{2389}}^1$

素因数の和:2712

約数の個数: 96

約数和(自身を含む): 42441122880

約数和(自身を除く): 21929049430

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 67, 110, 134, 233, 275, 335, 466, 550, 670, 737, 1165, 1474, 1675, 2330, 2389, 2563, 3350, 3685, 4778, 5126, 5825, 7370, 11650, 11945, 12815, 15611, 18425, 23890, 25630, 26279, 31222, 36850, 52558, 59725, 64075, 78055, 119450, 128150, 131395, 156110, 160063, 171721, 262790, 320126, 343442, 390275, 556637, 656975, 780550, 800315, 858605, 1113274, 1313950, 1600630, 1717210, 1760693, 2783185, 3521386, 4001575, 4293025, 5566370, 6123007, 8003150, 8586050, 8803465, 12246014, 13915925, 17606930, 27831850, 30615035, 37294679, 44017325, 61230070, 74589358, 88034650, 153075175, 186473395, 306150350, 372946790, 410241469, 820482938, 932366975, 1864733950, 2051207345, 4102414690, 10256036725, 20512073450]

約数ペア:

[(1, 20512073450), (2, 10256036725), (5, 4102414690), (10, 2051207345), (11, 1864733950), (22, 932366975), (25, 820482938), (50, 410241469), (55, 372946790), (67, 306150350), (110, 186473395), (134, 153075175), (233, 88034650), (275, 74589358), (335, 61230070), (466, 44017325), (550, 37294679), (670, 30615035), (737, 27831850), (1165, 17606930), (1474, 13915925), (1675, 12246014), (2330, 8803465), (2389, 8586050), (2563, 8003150), (3350, 6123007), (3685, 5566370), (4778, 4293025), (5126, 4001575), (5825, 3521386), (7370, 2783185), (11650, 1760693), (11945, 1717210), (12815, 1600630), (15611, 1313950), (18425, 1113274), (23890, 858605), (25630, 800315), (26279, 780550), (31222, 656975), (36850, 556637), (52558, 390275), (59725, 343442), (64075, 320126), (78055, 262790), (119450, 171721), (128150, 160063), (131395, 156110)]