1211948315

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1\times {\mathrm{641}}^1$

素因数の和:1111

約数の個数: 32

約数和(自身を含む): 1560892032

約数和(自身を除く): 348943717

約数列:

[1, 5, 23, 41, 115, 205, 401, 641, 943, 2005, 3205, 4715, 9223, 14743, 16441, 26281, 46115, 73715, 82205, 131405, 257041, 378143, 604463, 1285205, 1890715, 3022315, 5911943, 10538681, 29559715, 52693405, 242389663, 1211948315]

約数ペア:

[(1, 1211948315), (5, 242389663), (23, 52693405), (41, 29559715), (115, 10538681), (205, 5911943), (401, 3022315), (641, 1890715), (943, 1285205), (2005, 604463), (3205, 378143), (4715, 257041), (9223, 131405), (14743, 82205), (16441, 73715), (26281, 46115)]