152280980

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{373}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 325155600

約数和(自身を除く): 172874620

約数列:

[1, 2, 4, 5, 10, 20, 137, 149, 274, 298, 373, 548, 596, 685, 745, 746, 1370, 1490, 1492, 1865, 2740, 2980, 3730, 7460, 20413, 40826, 51101, 55577, 81652, 102065, 102202, 111154, 204130, 204404, 222308, 255505, 277885, 408260, 511010, 555770, 1022020, 1111540, 7614049, 15228098, 30456196, 38070245, 76140490, 152280980]

約数ペア:

[(1, 152280980), (2, 76140490), (4, 38070245), (5, 30456196), (10, 15228098), (20, 7614049), (137, 1111540), (149, 1022020), (274, 555770), (298, 511010), (373, 408260), (548, 277885), (596, 255505), (685, 222308), (745, 204404), (746, 204130), (1370, 111154), (1490, 102202), (1492, 102065), (1865, 81652), (2740, 55577), (2980, 51101), (3730, 40826), (7460, 20413)]