20179390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 46033920

約数和(自身を除く): 25854530

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 73, 77, 110, 146, 154, 359, 365, 385, 511, 718, 730, 770, 803, 1022, 1606, 1795, 2513, 2555, 3590, 3949, 4015, 5026, 5110, 5621, 7898, 8030, 11242, 12565, 19745, 25130, 26207, 27643, 28105, 39490, 52414, 55286, 56210, 131035, 138215, 183449, 262070, 276430, 288277, 366898, 576554, 917245, 1441385, 1834490, 2017939, 2882770, 4035878, 10089695, 20179390]

約数ペア:

[(1, 20179390), (2, 10089695), (5, 4035878), (7, 2882770), (10, 2017939), (11, 1834490), (14, 1441385), (22, 917245), (35, 576554), (55, 366898), (70, 288277), (73, 276430), (77, 262070), (110, 183449), (146, 138215), (154, 131035), (359, 56210), (365, 55286), (385, 52414), (511, 39490), (718, 28105), (730, 27643), (770, 26207), (803, 25130), (1022, 19745), (1606, 12565), (1795, 11242), (2513, 8030), (2555, 7898), (3590, 5621), (3949, 5110), (4015, 5026)]