19401080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 46837440

約数和(自身を除く): 27436360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 103, 136, 170, 206, 277, 340, 412, 515, 554, 680, 824, 1030, 1108, 1385, 1751, 2060, 2216, 2770, 3502, 4120, 4709, 5540, 7004, 8755, 9418, 11080, 14008, 17510, 18836, 23545, 28531, 35020, 37672, 47090, 57062, 70040, 94180, 114124, 142655, 188360, 228248, 285310, 485027, 570620, 970054, 1141240, 1940108, 2425135, 3880216, 4850270, 9700540, 19401080]

約数ペア:

[(1, 19401080), (2, 9700540), (4, 4850270), (5, 3880216), (8, 2425135), (10, 1940108), (17, 1141240), (20, 970054), (34, 570620), (40, 485027), (68, 285310), (85, 228248), (103, 188360), (136, 142655), (170, 114124), (206, 94180), (277, 70040), (340, 57062), (412, 47090), (515, 37672), (554, 35020), (680, 28531), (824, 23545), (1030, 18836), (1108, 17510), (1385, 14008), (1751, 11080), (2060, 9418), (2216, 8755), (2770, 7004), (3502, 5540), (4120, 4709)]