28805000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{823}}^1$

素因数の和:856

約数の個数: 80

約数和(自身を含む): 77225280

約数和(自身を除く): 48420280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 625, 700, 823, 875, 1000, 1250, 1400, 1646, 1750, 2500, 3292, 3500, 4115, 4375, 5000, 5761, 6584, 7000, 8230, 8750, 11522, 16460, 17500, 20575, 23044, 28805, 32920, 35000, 41150, 46088, 57610, 82300, 102875, 115220, 144025, 164600, 205750, 230440, 288050, 411500, 514375, 576100, 720125, 823000, 1028750, 1152200, 1440250, 2057500, 2880500, 3600625, 4115000, 5761000, 7201250, 14402500, 28805000]

約数ペア:

[(1, 28805000), (2, 14402500), (4, 7201250), (5, 5761000), (7, 4115000), (8, 3600625), (10, 2880500), (14, 2057500), (20, 1440250), (25, 1152200), (28, 1028750), (35, 823000), (40, 720125), (50, 576100), (56, 514375), (70, 411500), (100, 288050), (125, 230440), (140, 205750), (175, 164600), (200, 144025), (250, 115220), (280, 102875), (350, 82300), (500, 57610), (625, 46088), (700, 41150), (823, 35000), (875, 32920), (1000, 28805), (1250, 23044), (1400, 20575), (1646, 17500), (1750, 16460), (2500, 11522), (3292, 8750), (3500, 8230), (4115, 7000), (4375, 6584), (5000, 5761)]