20178233405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{4751}}^1$

素因数の和:4898

約数の個数: 64

約数和(自身を含む): 28378791936

約数和(自身を除く): 8200558531

約数列:

[1, 5, 11, 31, 47, 53, 55, 155, 235, 265, 341, 517, 583, 1457, 1643, 1705, 2491, 2585, 2915, 4751, 7285, 8215, 12455, 16027, 18073, 23755, 27401, 52261, 77221, 80135, 90365, 137005, 147281, 223297, 251803, 261305, 386105, 736405, 849431, 1116485, 1259015, 1620091, 2456267, 2769833, 4247155, 6922207, 7805893, 8100455, 11834741, 12281335, 13849165, 34611035, 39029465, 59173705, 76144277, 85864823, 130182151, 366876971, 380721385, 429324115, 650910755, 1834384855, 4035646681, 20178233405]

約数ペア:

[(1, 20178233405), (5, 4035646681), (11, 1834384855), (31, 650910755), (47, 429324115), (53, 380721385), (55, 366876971), (155, 130182151), (235, 85864823), (265, 76144277), (341, 59173705), (517, 39029465), (583, 34611035), (1457, 13849165), (1643, 12281335), (1705, 11834741), (2491, 8100455), (2585, 7805893), (2915, 6922207), (4751, 4247155), (7285, 2769833), (8215, 2456267), (12455, 1620091), (16027, 1259015), (18073, 1116485), (23755, 849431), (27401, 736405), (52261, 386105), (77221, 261305), (80135, 251803), (90365, 223297), (137005, 147281)]