987610568

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{1787}}^1$

素因数の和:2010

約数の個数: 64

約数和(自身を含む): 2162764800

約数和(自身を除く): 1175154232

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 139, 142, 278, 284, 497, 556, 568, 973, 994, 1112, 1787, 1946, 1988, 3574, 3892, 3976, 7148, 7784, 9869, 12509, 14296, 19738, 25018, 39476, 50036, 69083, 78952, 100072, 126877, 138166, 248393, 253754, 276332, 496786, 507508, 552664, 888139, 993572, 1015016, 1738751, 1776278, 1987144, 3477502, 3552556, 6955004, 7105112, 13910008, 17635903, 35271806, 70543612, 123451321, 141087224, 246902642, 493805284, 987610568]

約数ペア:

[(1, 987610568), (2, 493805284), (4, 246902642), (7, 141087224), (8, 123451321), (14, 70543612), (28, 35271806), (56, 17635903), (71, 13910008), (139, 7105112), (142, 6955004), (278, 3552556), (284, 3477502), (497, 1987144), (556, 1776278), (568, 1738751), (973, 1015016), (994, 993572), (1112, 888139), (1787, 552664), (1946, 507508), (1988, 496786), (3574, 276332), (3892, 253754), (3976, 248393), (7148, 138166), (7784, 126877), (9869, 100072), (12509, 78952), (14296, 69083), (19738, 50036), (25018, 39476)]