20185928020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{743}}^1\times {\mathrm{15263}}^1$

素因数の和:16104

約数の個数: 48

約数和(自身を含む): 42927252480

約数和(自身を除く): 22741324460

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 743, 890, 1486, 1780, 2972, 3715, 7430, 14860, 15263, 30526, 61052, 66127, 76315, 132254, 152630, 264508, 305260, 330635, 661270, 1322540, 1358407, 2716814, 5433628, 6792035, 11340409, 13584070, 22680818, 27168140, 45361636, 56702045, 113404090, 226808180, 1009296401, 2018592802, 4037185604, 5046482005, 10092964010, 20185928020]

約数ペア:

[(1, 20185928020), (2, 10092964010), (4, 5046482005), (5, 4037185604), (10, 2018592802), (20, 1009296401), (89, 226808180), (178, 113404090), (356, 56702045), (445, 45361636), (743, 27168140), (890, 22680818), (1486, 13584070), (1780, 11340409), (2972, 6792035), (3715, 5433628), (7430, 2716814), (14860, 1358407), (15263, 1322540), (30526, 661270), (61052, 330635), (66127, 305260), (76315, 264508), (132254, 152630)]