251232660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4637}}^1$

素因数の和:4702

約数の個数: 144

約数和(自身を含む): 891386496

約数和(自身を除く): 640153836

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 43, 45, 60, 63, 70, 84, 86, 90, 105, 126, 129, 140, 172, 180, 210, 215, 252, 258, 301, 315, 387, 420, 430, 516, 602, 630, 645, 774, 860, 903, 1204, 1260, 1290, 1505, 1548, 1806, 1935, 2580, 2709, 3010, 3612, 3870, 4515, 4637, 5418, 6020, 7740, 9030, 9274, 10836, 13545, 13911, 18060, 18548, 23185, 27090, 27822, 32459, 41733, 46370, 54180, 55644, 64918, 69555, 83466, 92740, 97377, 129836, 139110, 162295, 166932, 194754, 199391, 208665, 278220, 292131, 324590, 389508, 398782, 417330, 486885, 584262, 598173, 649180, 797564, 834660, 973770, 996955, 1168524, 1196346, 1395737, 1460655, 1794519, 1947540, 1993910, 2392692, 2791474, 2921310, 2990865, 3589038, 3987820, 4187211, 5582948, 5842620, 5981730, 6978685, 7178076, 8374422, 8972595, 11963460, 12561633, 13957370, 16748844, 17945190, 20936055, 25123266, 27914740, 35890380, 41872110, 50246532, 62808165, 83744220, 125616330, 251232660]

約数ペア:

[(1, 251232660), (2, 125616330), (3, 83744220), (4, 62808165), (5, 50246532), (6, 41872110), (7, 35890380), (9, 27914740), (10, 25123266), (12, 20936055), (14, 17945190), (15, 16748844), (18, 13957370), (20, 12561633), (21, 11963460), (28, 8972595), (30, 8374422), (35, 7178076), (36, 6978685), (42, 5981730), (43, 5842620), (45, 5582948), (60, 4187211), (63, 3987820), (70, 3589038), (84, 2990865), (86, 2921310), (90, 2791474), (105, 2392692), (126, 1993910), (129, 1947540), (140, 1794519), (172, 1460655), (180, 1395737), (210, 1196346), (215, 1168524), (252, 996955), (258, 973770), (301, 834660), (315, 797564), (387, 649180), (420, 598173), (430, 584262), (516, 486885), (602, 417330), (630, 398782), (645, 389508), (774, 324590), (860, 292131), (903, 278220), (1204, 208665), (1260, 199391), (1290, 194754), (1505, 166932), (1548, 162295), (1806, 139110), (1935, 129836), (2580, 97377), (2709, 92740), (3010, 83466), (3612, 69555), (3870, 64918), (4515, 55644), (4637, 54180), (5418, 46370), (6020, 41733), (7740, 32459), (9030, 27822), (9274, 27090), (10836, 23185), (13545, 18548), (13911, 18060)]