20653570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{293}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 25069310

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 53, 70, 95, 106, 133, 190, 265, 266, 293, 371, 530, 586, 665, 742, 1007, 1330, 1465, 1855, 2014, 2051, 2930, 3710, 4102, 5035, 5567, 7049, 10070, 10255, 11134, 14098, 15529, 20510, 27835, 31058, 35245, 38969, 55670, 70490, 77645, 77938, 108703, 155290, 194845, 217406, 295051, 389690, 543515, 590102, 1087030, 1475255, 2065357, 2950510, 4130714, 10326785, 20653570]

約数ペア:

[(1, 20653570), (2, 10326785), (5, 4130714), (7, 2950510), (10, 2065357), (14, 1475255), (19, 1087030), (35, 590102), (38, 543515), (53, 389690), (70, 295051), (95, 217406), (106, 194845), (133, 155290), (190, 108703), (265, 77938), (266, 77645), (293, 70490), (371, 55670), (530, 38969), (586, 35245), (665, 31058), (742, 27835), (1007, 20510), (1330, 15529), (1465, 14098), (1855, 11134), (2014, 10255), (2051, 10070), (2930, 7049), (3710, 5567), (4102, 5035)]