81454000

素因数分解:

$2^4\times 5^3\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:455

約数の個数: 80

約数和(自身を含む): 199049760

約数和(自身を除く): 117595760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 139, 200, 250, 278, 293, 400, 500, 556, 586, 695, 1000, 1112, 1172, 1390, 1465, 2000, 2224, 2344, 2780, 2930, 3475, 4688, 5560, 5860, 6950, 7325, 11120, 11720, 13900, 14650, 17375, 23440, 27800, 29300, 34750, 36625, 40727, 55600, 58600, 69500, 73250, 81454, 117200, 139000, 146500, 162908, 203635, 278000, 293000, 325816, 407270, 586000, 651632, 814540, 1018175, 1629080, 2036350, 3258160, 4072700, 5090875, 8145400, 10181750, 16290800, 20363500, 40727000, 81454000]

約数ペア:

[(1, 81454000), (2, 40727000), (4, 20363500), (5, 16290800), (8, 10181750), (10, 8145400), (16, 5090875), (20, 4072700), (25, 3258160), (40, 2036350), (50, 1629080), (80, 1018175), (100, 814540), (125, 651632), (139, 586000), (200, 407270), (250, 325816), (278, 293000), (293, 278000), (400, 203635), (500, 162908), (556, 146500), (586, 139000), (695, 117200), (1000, 81454), (1112, 73250), (1172, 69500), (1390, 58600), (1465, 55600), (2000, 40727), (2224, 36625), (2344, 34750), (2780, 29300), (2930, 27800), (3475, 23440), (4688, 17375), (5560, 14650), (5860, 13900), (6950, 11720), (7325, 11120)]