207778520

素因数分解:

$2^3\times 5^1\times {\mathrm{1151}}^1\times {\mathrm{4513}}^1$

素因数の和:5675

約数の個数: 32

約数和(自身を含む): 468011520

約数和(自身を除く): 260233000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1151, 2302, 4513, 4604, 5755, 9026, 9208, 11510, 18052, 22565, 23020, 36104, 45130, 46040, 90260, 180520, 5194463, 10388926, 20777852, 25972315, 41555704, 51944630, 103889260, 207778520]

約数ペア:

[(1, 207778520), (2, 103889260), (4, 51944630), (5, 41555704), (8, 25972315), (10, 20777852), (20, 10388926), (40, 5194463), (1151, 180520), (2302, 90260), (4513, 46040), (4604, 45130), (5755, 36104), (9026, 23020), (9208, 22565), (11510, 18052)]