19805310

素因数分解:

$2^1\times 3^4\times 5^1\times 7^2\times {\mathrm{499}}^1$

素因数の和:532

約数の個数: 120

約数和(自身を含む): 62073000

約数和(自身を除く): 42267690

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 81, 90, 98, 105, 126, 135, 147, 162, 189, 210, 245, 270, 294, 315, 378, 405, 441, 490, 499, 567, 630, 735, 810, 882, 945, 998, 1134, 1323, 1470, 1497, 1890, 2205, 2495, 2646, 2835, 2994, 3493, 3969, 4410, 4491, 4990, 5670, 6615, 6986, 7485, 7938, 8982, 10479, 13230, 13473, 14970, 17465, 19845, 20958, 22455, 24451, 26946, 31437, 34930, 39690, 40419, 44910, 48902, 52395, 62874, 67365, 73353, 80838, 94311, 104790, 122255, 134730, 146706, 157185, 188622, 202095, 220059, 244510, 282933, 314370, 366765, 404190, 440118, 471555, 565866, 660177, 733530, 943110, 1100295, 1320354, 1414665, 1980531, 2200590, 2829330, 3300885, 3961062, 6601770, 9902655, 19805310]

約数ペア:

[(1, 19805310), (2, 9902655), (3, 6601770), (5, 3961062), (6, 3300885), (7, 2829330), (9, 2200590), (10, 1980531), (14, 1414665), (15, 1320354), (18, 1100295), (21, 943110), (27, 733530), (30, 660177), (35, 565866), (42, 471555), (45, 440118), (49, 404190), (54, 366765), (63, 314370), (70, 282933), (81, 244510), (90, 220059), (98, 202095), (105, 188622), (126, 157185), (135, 146706), (147, 134730), (162, 122255), (189, 104790), (210, 94311), (245, 80838), (270, 73353), (294, 67365), (315, 62874), (378, 52395), (405, 48902), (441, 44910), (490, 40419), (499, 39690), (567, 34930), (630, 31437), (735, 26946), (810, 24451), (882, 22455), (945, 20958), (998, 19845), (1134, 17465), (1323, 14970), (1470, 13473), (1497, 13230), (1890, 10479), (2205, 8982), (2495, 7938), (2646, 7485), (2835, 6986), (2994, 6615), (3493, 5670), (3969, 4990), (4410, 4491)]