20128828

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{3191}}^1$

素因数の和:3297

約数の個数: 24

約数和(自身を含む): 37537920

約数和(自身を除く): 17409092

約数列:

[1, 2, 4, 19, 38, 76, 83, 166, 332, 1577, 3154, 3191, 6308, 6382, 12764, 60629, 121258, 242516, 264853, 529706, 1059412, 5032207, 10064414, 20128828]

約数ペア:

[(1, 20128828), (2, 10064414), (4, 5032207), (19, 1059412), (38, 529706), (76, 264853), (83, 242516), (166, 121258), (332, 60629), (1577, 12764), (3154, 6382), (3191, 6308)]