81252780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{953}}^1$

素因数の和:1008

約数の個数: 144

約数和(自身を含む): 274065120

約数和(自身を除く): 192812340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 49, 58, 60, 70, 84, 87, 98, 105, 116, 140, 145, 147, 174, 196, 203, 210, 245, 290, 294, 348, 406, 420, 435, 490, 580, 588, 609, 735, 812, 870, 953, 980, 1015, 1218, 1421, 1470, 1740, 1906, 2030, 2436, 2842, 2859, 2940, 3045, 3812, 4060, 4263, 4765, 5684, 5718, 6090, 6671, 7105, 8526, 9530, 11436, 12180, 13342, 14210, 14295, 17052, 19060, 20013, 21315, 26684, 27637, 28420, 28590, 33355, 40026, 42630, 46697, 55274, 57180, 66710, 80052, 82911, 85260, 93394, 100065, 110548, 133420, 138185, 140091, 165822, 186788, 193459, 200130, 233485, 276370, 280182, 331644, 386918, 400260, 414555, 466970, 552740, 560364, 580377, 700455, 773836, 829110, 933940, 967295, 1160754, 1354213, 1400910, 1658220, 1934590, 2321508, 2708426, 2801820, 2901885, 3869180, 4062639, 5416852, 5803770, 6771065, 8125278, 11607540, 13542130, 16250556, 20313195, 27084260, 40626390, 81252780]

約数ペア:

[(1, 81252780), (2, 40626390), (3, 27084260), (4, 20313195), (5, 16250556), (6, 13542130), (7, 11607540), (10, 8125278), (12, 6771065), (14, 5803770), (15, 5416852), (20, 4062639), (21, 3869180), (28, 2901885), (29, 2801820), (30, 2708426), (35, 2321508), (42, 1934590), (49, 1658220), (58, 1400910), (60, 1354213), (70, 1160754), (84, 967295), (87, 933940), (98, 829110), (105, 773836), (116, 700455), (140, 580377), (145, 560364), (147, 552740), (174, 466970), (196, 414555), (203, 400260), (210, 386918), (245, 331644), (290, 280182), (294, 276370), (348, 233485), (406, 200130), (420, 193459), (435, 186788), (490, 165822), (580, 140091), (588, 138185), (609, 133420), (735, 110548), (812, 100065), (870, 93394), (953, 85260), (980, 82911), (1015, 80052), (1218, 66710), (1421, 57180), (1470, 55274), (1740, 46697), (1906, 42630), (2030, 40026), (2436, 33355), (2842, 28590), (2859, 28420), (2940, 27637), (3045, 26684), (3812, 21315), (4060, 20013), (4263, 19060), (4765, 17052), (5684, 14295), (5718, 14210), (6090, 13342), (6671, 12180), (7105, 11436), (8526, 9530)]