16720228

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{593}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 35925120

約数和(自身を除く): 19204892

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 53, 76, 106, 133, 212, 266, 371, 532, 593, 742, 1007, 1186, 1484, 2014, 2372, 4028, 4151, 7049, 8302, 11267, 14098, 16604, 22534, 28196, 31429, 45068, 62858, 78869, 125716, 157738, 220003, 315476, 440006, 597151, 880012, 1194302, 2388604, 4180057, 8360114, 16720228]

約数ペア:

[(1, 16720228), (2, 8360114), (4, 4180057), (7, 2388604), (14, 1194302), (19, 880012), (28, 597151), (38, 440006), (53, 315476), (76, 220003), (106, 157738), (133, 125716), (212, 78869), (266, 62858), (371, 45068), (532, 31429), (593, 28196), (742, 22534), (1007, 16604), (1186, 14098), (1484, 11267), (2014, 8302), (2372, 7049), (4028, 4151)]