206918005

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{641}}^1$

素因数の和:1077

約数の個数: 32

約数和(自身を含む): 297312768

約数和(自身を除く): 90394763

約数列:

[1, 5, 7, 23, 35, 115, 161, 401, 641, 805, 2005, 2807, 3205, 4487, 9223, 14035, 14743, 22435, 46115, 64561, 73715, 103201, 257041, 322805, 516005, 1285205, 1799287, 5911943, 8996435, 29559715, 41383601, 206918005]

約数ペア:

[(1, 206918005), (5, 41383601), (7, 29559715), (23, 8996435), (35, 5911943), (115, 1799287), (161, 1285205), (401, 516005), (641, 322805), (805, 257041), (2005, 103201), (2807, 73715), (3205, 64561), (4487, 46115), (9223, 22435), (14035, 14743)]