20297180

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 23732260

約数列:

[1, 2, 4, 5, 10, 20, 59, 103, 118, 167, 206, 236, 295, 334, 412, 515, 590, 668, 835, 1030, 1180, 1670, 2060, 3340, 6077, 9853, 12154, 17201, 19706, 24308, 30385, 34402, 39412, 49265, 60770, 68804, 86005, 98530, 121540, 172010, 197060, 344020, 1014859, 2029718, 4059436, 5074295, 10148590, 20297180]

約数ペア:

[(1, 20297180), (2, 10148590), (4, 5074295), (5, 4059436), (10, 2029718), (20, 1014859), (59, 344020), (103, 197060), (118, 172010), (167, 121540), (206, 98530), (236, 86005), (295, 68804), (334, 60770), (412, 49265), (515, 39412), (590, 34402), (668, 30385), (835, 24308), (1030, 19706), (1180, 17201), (1670, 12154), (2060, 9853), (3340, 6077)]