20022002

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 41174784

約数和(自身を除く): 21152782

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 73, 77, 91, 137, 143, 146, 154, 182, 274, 286, 511, 803, 949, 959, 1001, 1022, 1507, 1606, 1781, 1898, 1918, 2002, 3014, 3562, 5621, 6643, 10001, 10439, 10549, 11242, 12467, 13286, 19591, 20002, 20878, 21098, 24934, 39182, 70007, 73073, 110011, 130013, 137137, 140014, 146146, 220022, 260026, 274274, 770077, 910091, 1430143, 1540154, 1820182, 2860286, 10011001, 20022002]

約数ペア:

[(1, 20022002), (2, 10011001), (7, 2860286), (11, 1820182), (13, 1540154), (14, 1430143), (22, 910091), (26, 770077), (73, 274274), (77, 260026), (91, 220022), (137, 146146), (143, 140014), (146, 137137), (154, 130013), (182, 110011), (274, 73073), (286, 70007), (511, 39182), (803, 24934), (949, 21098), (959, 20878), (1001, 20002), (1022, 19591), (1507, 13286), (1606, 12467), (1781, 11242), (1898, 10549), (1918, 10439), (2002, 10001), (3014, 6643), (3562, 5621)]