72139900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{401}}^1$

素因数の和:679

約数の個数: 72

約数和(自身を含む): 180050976

約数和(自身を除く): 107911076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 257, 350, 401, 514, 700, 802, 1028, 1285, 1604, 1799, 2005, 2570, 2807, 3598, 4010, 5140, 5614, 6425, 7196, 8020, 8995, 10025, 11228, 12850, 14035, 17990, 20050, 25700, 28070, 35980, 40100, 44975, 56140, 70175, 89950, 103057, 140350, 179900, 206114, 280700, 412228, 515285, 721399, 1030570, 1442798, 2061140, 2576425, 2885596, 3606995, 5152850, 7213990, 10305700, 14427980, 18034975, 36069950, 72139900]

約数ペア:

[(1, 72139900), (2, 36069950), (4, 18034975), (5, 14427980), (7, 10305700), (10, 7213990), (14, 5152850), (20, 3606995), (25, 2885596), (28, 2576425), (35, 2061140), (50, 1442798), (70, 1030570), (100, 721399), (140, 515285), (175, 412228), (257, 280700), (350, 206114), (401, 179900), (514, 140350), (700, 103057), (802, 89950), (1028, 70175), (1285, 56140), (1604, 44975), (1799, 40100), (2005, 35980), (2570, 28070), (2807, 25700), (3598, 20050), (4010, 17990), (5140, 14035), (5614, 12850), (6425, 11228), (7196, 10025), (8020, 8995)]