20641272

素因数分解:

$2^3\times 3^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:716

約数の個数: 64

約数和(自身を含む): 54604800

約数和(自身を除く): 33963528

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 29, 47, 58, 87, 94, 116, 141, 174, 188, 232, 282, 348, 376, 564, 631, 696, 1128, 1262, 1363, 1893, 2524, 2726, 3786, 4089, 5048, 5452, 7572, 8178, 10904, 15144, 16356, 18299, 29657, 32712, 36598, 54897, 59314, 73196, 88971, 109794, 118628, 146392, 177942, 219588, 237256, 355884, 439176, 711768, 860053, 1720106, 2580159, 3440212, 5160318, 6880424, 10320636, 20641272]

約数ペア:

[(1, 20641272), (2, 10320636), (3, 6880424), (4, 5160318), (6, 3440212), (8, 2580159), (12, 1720106), (24, 860053), (29, 711768), (47, 439176), (58, 355884), (87, 237256), (94, 219588), (116, 177942), (141, 146392), (174, 118628), (188, 109794), (232, 88971), (282, 73196), (348, 59314), (376, 54897), (564, 36598), (631, 32712), (696, 29657), (1128, 18299), (1262, 16356), (1363, 15144), (1893, 10904), (2524, 8178), (2726, 7572), (3786, 5452), (4089, 5048)]