20137243540

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1241507}}^1$

素因数の和:1242327

約数の個数: 24

約数和(自身を含む): 42340388832

約数和(自身を除く): 22203145292

約数列:

[1, 2, 4, 5, 10, 20, 811, 1622, 3244, 4055, 8110, 16220, 1241507, 2483014, 4966028, 6207535, 12415070, 24830140, 1006862177, 2013724354, 4027448708, 5034310885, 10068621770, 20137243540]

約数ペア:

[(1, 20137243540), (2, 10068621770), (4, 5034310885), (5, 4027448708), (10, 2013724354), (20, 1006862177), (811, 24830140), (1622, 12415070), (3244, 6207535), (4055, 4966028), (8110, 2483014), (16220, 1241507)]