209787140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:381

約数の個数: 96

約数和(自身を含む): 492791040

約数和(自身を除く): 283003900

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 139, 170, 193, 230, 278, 340, 386, 391, 460, 556, 695, 772, 782, 965, 1390, 1564, 1930, 1955, 2363, 2780, 3197, 3281, 3860, 3910, 4439, 4726, 6394, 6562, 7820, 8878, 9452, 11815, 12788, 13124, 15985, 16405, 17756, 22195, 23630, 26827, 31970, 32810, 44390, 47260, 53654, 54349, 63940, 65620, 75463, 88780, 107308, 108698, 134135, 150926, 217396, 268270, 271745, 301852, 377315, 456059, 536540, 543490, 617021, 754630, 912118, 1086980, 1234042, 1509260, 1824236, 2280295, 2468084, 3085105, 4560590, 6170210, 9121180, 10489357, 12340420, 20978714, 41957428, 52446785, 104893570, 209787140]

約数ペア:

[(1, 209787140), (2, 104893570), (4, 52446785), (5, 41957428), (10, 20978714), (17, 12340420), (20, 10489357), (23, 9121180), (34, 6170210), (46, 4560590), (68, 3085105), (85, 2468084), (92, 2280295), (115, 1824236), (139, 1509260), (170, 1234042), (193, 1086980), (230, 912118), (278, 754630), (340, 617021), (386, 543490), (391, 536540), (460, 456059), (556, 377315), (695, 301852), (772, 271745), (782, 268270), (965, 217396), (1390, 150926), (1564, 134135), (1930, 108698), (1955, 107308), (2363, 88780), (2780, 75463), (3197, 65620), (3281, 63940), (3860, 54349), (3910, 53654), (4439, 47260), (4726, 44390), (6394, 32810), (6562, 31970), (7820, 26827), (8878, 23630), (9452, 22195), (11815, 17756), (12788, 16405), (13124, 15985)]