19165960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1013}}^1$

素因数の和:1078

約数の個数: 64

約数和(自身を含む): 48185280

約数和(自身を除く): 29019320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1013, 1720, 1892, 2026, 2365, 3784, 4052, 4730, 5065, 8104, 9460, 10130, 11143, 18920, 20260, 22286, 40520, 43559, 44572, 55715, 87118, 89144, 111430, 174236, 217795, 222860, 348472, 435590, 445720, 479149, 871180, 958298, 1742360, 1916596, 2395745, 3833192, 4791490, 9582980, 19165960]

約数ペア:

[(1, 19165960), (2, 9582980), (4, 4791490), (5, 3833192), (8, 2395745), (10, 1916596), (11, 1742360), (20, 958298), (22, 871180), (40, 479149), (43, 445720), (44, 435590), (55, 348472), (86, 222860), (88, 217795), (110, 174236), (172, 111430), (215, 89144), (220, 87118), (344, 55715), (430, 44572), (440, 43559), (473, 40520), (860, 22286), (946, 20260), (1013, 18920), (1720, 11143), (1892, 10130), (2026, 9460), (2365, 8104), (3784, 5065), (4052, 4730)]