19140440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1061}}^1$

素因数の和:1124

約数の個数: 64

約数和(自身を含む): 48172320

約数和(自身を除く): 29031880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 205, 220, 328, 410, 440, 451, 820, 902, 1061, 1640, 1804, 2122, 2255, 3608, 4244, 4510, 5305, 8488, 9020, 10610, 11671, 18040, 21220, 23342, 42440, 43501, 46684, 58355, 87002, 93368, 116710, 174004, 217505, 233420, 348008, 435010, 466840, 478511, 870020, 957022, 1740040, 1914044, 2392555, 3828088, 4785110, 9570220, 19140440]

約数ペア:

[(1, 19140440), (2, 9570220), (4, 4785110), (5, 3828088), (8, 2392555), (10, 1914044), (11, 1740040), (20, 957022), (22, 870020), (40, 478511), (41, 466840), (44, 435010), (55, 348008), (82, 233420), (88, 217505), (110, 174004), (164, 116710), (205, 93368), (220, 87002), (328, 58355), (410, 46684), (440, 43501), (451, 42440), (820, 23342), (902, 21220), (1061, 18040), (1640, 11671), (1804, 10610), (2122, 9020), (2255, 8488), (3608, 5305), (4244, 4510)]