20178004

素因数分解:

$2^2\times 7^4\times {\mathrm{11}}^1\times {\mathrm{191}}^1$

素因数の和:234

約数の個数: 60

約数和(自身を含む): 45174528

約数和(自身を除く): 24996524

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 191, 196, 308, 343, 382, 539, 686, 764, 1078, 1337, 1372, 2101, 2156, 2401, 2674, 3773, 4202, 4802, 5348, 7546, 8404, 9359, 9604, 14707, 15092, 18718, 26411, 29414, 37436, 52822, 58828, 65513, 102949, 105644, 131026, 205898, 262052, 411796, 458591, 720643, 917182, 1441286, 1834364, 2882572, 5044501, 10089002, 20178004]

約数ペア:

[(1, 20178004), (2, 10089002), (4, 5044501), (7, 2882572), (11, 1834364), (14, 1441286), (22, 917182), (28, 720643), (44, 458591), (49, 411796), (77, 262052), (98, 205898), (154, 131026), (191, 105644), (196, 102949), (308, 65513), (343, 58828), (382, 52822), (539, 37436), (686, 29414), (764, 26411), (1078, 18718), (1337, 15092), (1372, 14707), (2101, 9604), (2156, 9359), (2401, 8404), (2674, 7546), (3773, 5348), (4202, 4802)]