249774980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137239}}^1$

素因数の和:137268

約数の個数: 48

約数和(自身を含む): 645576960

約数和(自身を除く): 395801980

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 137239, 274478, 548956, 686195, 960673, 1372390, 1784107, 1921346, 2744780, 3568214, 3842692, 4803365, 7136428, 8920535, 9606730, 12488749, 17841070, 19213460, 24977498, 35682140, 49954996, 62443745, 124887490, 249774980]

約数ペア:

[(1, 249774980), (2, 124887490), (4, 62443745), (5, 49954996), (7, 35682140), (10, 24977498), (13, 19213460), (14, 17841070), (20, 12488749), (26, 9606730), (28, 8920535), (35, 7136428), (52, 4803365), (65, 3842692), (70, 3568214), (91, 2744780), (130, 1921346), (140, 1784107), (182, 1372390), (260, 960673), (364, 686195), (455, 548956), (910, 274478), (1820, 137239)]