20976340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:337

約数の個数: 96

約数和(自身を含む): 56173824

約数和(自身を除く): 35197484

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 53, 55, 70, 77, 106, 110, 140, 154, 212, 220, 257, 265, 308, 371, 385, 514, 530, 583, 742, 770, 1028, 1060, 1166, 1285, 1484, 1540, 1799, 1855, 2332, 2570, 2827, 2915, 3598, 3710, 4081, 5140, 5654, 5830, 7196, 7420, 8162, 8995, 11308, 11660, 13621, 14135, 16324, 17990, 19789, 20405, 27242, 28270, 35980, 39578, 40810, 54484, 56540, 68105, 79156, 81620, 95347, 98945, 136210, 149831, 190694, 197890, 272420, 299662, 381388, 395780, 476735, 599324, 749155, 953470, 1048817, 1498310, 1906940, 2097634, 2996620, 4195268, 5244085, 10488170, 20976340]

約数ペア:

[(1, 20976340), (2, 10488170), (4, 5244085), (5, 4195268), (7, 2996620), (10, 2097634), (11, 1906940), (14, 1498310), (20, 1048817), (22, 953470), (28, 749155), (35, 599324), (44, 476735), (53, 395780), (55, 381388), (70, 299662), (77, 272420), (106, 197890), (110, 190694), (140, 149831), (154, 136210), (212, 98945), (220, 95347), (257, 81620), (265, 79156), (308, 68105), (371, 56540), (385, 54484), (514, 40810), (530, 39578), (583, 35980), (742, 28270), (770, 27242), (1028, 20405), (1060, 19789), (1166, 17990), (1285, 16324), (1484, 14135), (1540, 13621), (1799, 11660), (1855, 11308), (2332, 8995), (2570, 8162), (2827, 7420), (2915, 7196), (3598, 5830), (3710, 5654), (4081, 5140)]