280164780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{5171}}^1$

素因数の和:5236

約数の個数: 144

約数和(自身を含む): 994017024

約数和(自身を除く): 713852244

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, 5171, 5418, 6020, 7740, 9030, 10342, 10836, 13545, 15513, 18060, 20684, 25855, 27090, 31026, 36197, 46539, 51710, 54180, 62052, 72394, 77565, 93078, 103420, 108591, 144788, 155130, 180985, 186156, 217182, 222353, 232695, 310260, 325773, 361970, 434364, 444706, 465390, 542955, 651546, 667059, 723940, 889412, 930780, 1085910, 1111765, 1303092, 1334118, 1556471, 1628865, 2001177, 2171820, 2223530, 2668236, 3112942, 3257730, 3335295, 4002354, 4447060, 4669413, 6225884, 6515460, 6670590, 7782355, 8004708, 9338826, 10005885, 13341180, 14008239, 15564710, 18677652, 20011770, 23347065, 28016478, 31129420, 40023540, 46694130, 56032956, 70041195, 93388260, 140082390, 280164780]

約数ペア:

[(1, 280164780), (2, 140082390), (3, 93388260), (4, 70041195), (5, 56032956), (6, 46694130), (7, 40023540), (9, 31129420), (10, 28016478), (12, 23347065), (14, 20011770), (15, 18677652), (18, 15564710), (20, 14008239), (21, 13341180), (28, 10005885), (30, 9338826), (35, 8004708), (36, 7782355), (42, 6670590), (43, 6515460), (45, 6225884), (60, 4669413), (63, 4447060), (70, 4002354), (84, 3335295), (86, 3257730), (90, 3112942), (105, 2668236), (126, 2223530), (129, 2171820), (140, 2001177), (172, 1628865), (180, 1556471), (210, 1334118), (215, 1303092), (252, 1111765), (258, 1085910), (301, 930780), (315, 889412), (387, 723940), (420, 667059), (430, 651546), (516, 542955), (602, 465390), (630, 444706), (645, 434364), (774, 361970), (860, 325773), (903, 310260), (1204, 232695), (1260, 222353), (1290, 217182), (1505, 186156), (1548, 180985), (1806, 155130), (1935, 144788), (2580, 108591), (2709, 103420), (3010, 93078), (3612, 77565), (3870, 72394), (4515, 62052), (5171, 54180), (5418, 51710), (6020, 46539), (7740, 36197), (9030, 31026), (10342, 27090), (10836, 25855), (13545, 20684), (15513, 18060)]