206949540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1637}}^1$

素因数の和:1706

約数の個数: 144

約数和(自身を含む): 690161472

約数和(自身を除く): 483211932

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 49, 60, 70, 84, 86, 98, 105, 129, 140, 147, 172, 196, 210, 215, 245, 258, 294, 301, 420, 430, 490, 516, 588, 602, 645, 735, 860, 903, 980, 1204, 1290, 1470, 1505, 1637, 1806, 2107, 2580, 2940, 3010, 3274, 3612, 4214, 4515, 4911, 6020, 6321, 6548, 8185, 8428, 9030, 9822, 10535, 11459, 12642, 16370, 18060, 19644, 21070, 22918, 24555, 25284, 31605, 32740, 34377, 42140, 45836, 49110, 57295, 63210, 68754, 70391, 80213, 98220, 114590, 126420, 137508, 140782, 160426, 171885, 211173, 229180, 240639, 281564, 320852, 343770, 351955, 401065, 422346, 481278, 492737, 687540, 703910, 802130, 844692, 962556, 985474, 1055865, 1203195, 1407820, 1478211, 1604260, 1970948, 2111730, 2406390, 2463685, 2956422, 3449159, 4223460, 4812780, 4927370, 5912844, 6898318, 7391055, 9854740, 10347477, 13796636, 14782110, 17245795, 20694954, 29564220, 34491590, 41389908, 51737385, 68983180, 103474770, 206949540]

約数ペア:

[(1, 206949540), (2, 103474770), (3, 68983180), (4, 51737385), (5, 41389908), (6, 34491590), (7, 29564220), (10, 20694954), (12, 17245795), (14, 14782110), (15, 13796636), (20, 10347477), (21, 9854740), (28, 7391055), (30, 6898318), (35, 5912844), (42, 4927370), (43, 4812780), (49, 4223460), (60, 3449159), (70, 2956422), (84, 2463685), (86, 2406390), (98, 2111730), (105, 1970948), (129, 1604260), (140, 1478211), (147, 1407820), (172, 1203195), (196, 1055865), (210, 985474), (215, 962556), (245, 844692), (258, 802130), (294, 703910), (301, 687540), (420, 492737), (430, 481278), (490, 422346), (516, 401065), (588, 351955), (602, 343770), (645, 320852), (735, 281564), (860, 240639), (903, 229180), (980, 211173), (1204, 171885), (1290, 160426), (1470, 140782), (1505, 137508), (1637, 126420), (1806, 114590), (2107, 98220), (2580, 80213), (2940, 70391), (3010, 68754), (3274, 63210), (3612, 57295), (4214, 49110), (4515, 45836), (4911, 42140), (6020, 34377), (6321, 32740), (6548, 31605), (8185, 25284), (8428, 24555), (9030, 22918), (9822, 21070), (10535, 19644), (11459, 18060), (12642, 16370)]