20215098075

素因数分解:

$3^1\times 5^2\times {\mathrm{241}}^1\times {\mathrm{307}}^1\times {\mathrm{3643}}^1$

素因数の和:4204

約数の個数: 48

約数和(自身を含む): 33679538816

約数和(自身を除く): 13464440741

約数列:

[1, 3, 5, 15, 25, 75, 241, 307, 723, 921, 1205, 1535, 3615, 3643, 4605, 6025, 7675, 10929, 18075, 18215, 23025, 54645, 73987, 91075, 221961, 273225, 369935, 877963, 1109805, 1118401, 1849675, 2633889, 3355203, 4389815, 5549025, 5592005, 13169445, 16776015, 21949075, 27960025, 65847225, 83880075, 269534641, 808603923, 1347673205, 4043019615, 6738366025, 20215098075]

約数ペア:

[(1, 20215098075), (3, 6738366025), (5, 4043019615), (15, 1347673205), (25, 808603923), (75, 269534641), (241, 83880075), (307, 65847225), (723, 27960025), (921, 21949075), (1205, 16776015), (1535, 13169445), (3615, 5592005), (3643, 5549025), (4605, 4389815), (6025, 3355203), (7675, 2633889), (10929, 1849675), (18075, 1118401), (18215, 1109805), (23025, 877963), (54645, 369935), (73987, 273225), (91075, 221961)]