20357478

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{661}}^1$

素因数の和:757

約数の個数: 48

約数和(自身を含む): 46472400

約数和(自身を除く): 26114922

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 59, 87, 118, 174, 177, 261, 354, 522, 531, 661, 1062, 1322, 1711, 1983, 3422, 3966, 5133, 5949, 10266, 11898, 15399, 19169, 30798, 38338, 38999, 57507, 77998, 115014, 116997, 172521, 233994, 345042, 350991, 701982, 1130971, 2261942, 3392913, 6785826, 10178739, 20357478]

約数ペア:

[(1, 20357478), (2, 10178739), (3, 6785826), (6, 3392913), (9, 2261942), (18, 1130971), (29, 701982), (58, 350991), (59, 345042), (87, 233994), (118, 172521), (174, 116997), (177, 115014), (261, 77998), (354, 57507), (522, 38999), (531, 38338), (661, 30798), (1062, 19169), (1322, 15399), (1711, 11898), (1983, 10266), (3422, 5949), (3966, 5133)]