22487500

素因数分解:

$2^2\times 5^5\times 7^1\times {\mathrm{257}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 56433888

約数和(自身を除く): 33946388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 257, 350, 500, 514, 625, 700, 875, 1028, 1250, 1285, 1750, 1799, 2500, 2570, 3125, 3500, 3598, 4375, 5140, 6250, 6425, 7196, 8750, 8995, 12500, 12850, 17500, 17990, 21875, 25700, 32125, 35980, 43750, 44975, 64250, 87500, 89950, 128500, 160625, 179900, 224875, 321250, 449750, 642500, 803125, 899500, 1124375, 1606250, 2248750, 3212500, 4497500, 5621875, 11243750, 22487500]

約数ペア:

[(1, 22487500), (2, 11243750), (4, 5621875), (5, 4497500), (7, 3212500), (10, 2248750), (14, 1606250), (20, 1124375), (25, 899500), (28, 803125), (35, 642500), (50, 449750), (70, 321250), (100, 224875), (125, 179900), (140, 160625), (175, 128500), (250, 89950), (257, 87500), (350, 64250), (500, 44975), (514, 43750), (625, 35980), (700, 32125), (875, 25700), (1028, 21875), (1250, 17990), (1285, 17500), (1750, 12850), (1799, 12500), (2500, 8995), (2570, 8750), (3125, 7196), (3500, 6425), (3598, 6250), (4375, 5140)]