1280815920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{11939}}^1$

素因数の和:12107

約数の個数: 120

約数和(自身を含む): 4330638000

約数和(自身を除く): 3049822080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 149, 180, 240, 298, 360, 447, 596, 720, 745, 894, 1192, 1341, 1490, 1788, 2235, 2384, 2682, 2980, 3576, 4470, 5364, 5960, 6705, 7152, 8940, 10728, 11920, 11939, 13410, 17880, 21456, 23878, 26820, 35760, 35817, 47756, 53640, 59695, 71634, 95512, 107280, 107451, 119390, 143268, 179085, 191024, 214902, 238780, 286536, 358170, 429804, 477560, 537255, 573072, 716340, 859608, 955120, 1074510, 1432680, 1719216, 1778911, 2149020, 2865360, 3557822, 4298040, 5336733, 7115644, 8596080, 8894555, 10673466, 14231288, 16010199, 17789110, 21346932, 26683665, 28462576, 32020398, 35578220, 42693864, 53367330, 64040796, 71156440, 80050995, 85387728, 106734660, 128081592, 142312880, 160101990, 213469320, 256163184, 320203980, 426938640, 640407960, 1280815920]

約数ペア:

[(1, 1280815920), (2, 640407960), (3, 426938640), (4, 320203980), (5, 256163184), (6, 213469320), (8, 160101990), (9, 142312880), (10, 128081592), (12, 106734660), (15, 85387728), (16, 80050995), (18, 71156440), (20, 64040796), (24, 53367330), (30, 42693864), (36, 35578220), (40, 32020398), (45, 28462576), (48, 26683665), (60, 21346932), (72, 17789110), (80, 16010199), (90, 14231288), (120, 10673466), (144, 8894555), (149, 8596080), (180, 7115644), (240, 5336733), (298, 4298040), (360, 3557822), (447, 2865360), (596, 2149020), (720, 1778911), (745, 1719216), (894, 1432680), (1192, 1074510), (1341, 955120), (1490, 859608), (1788, 716340), (2235, 573072), (2384, 537255), (2682, 477560), (2980, 429804), (3576, 358170), (4470, 286536), (5364, 238780), (5960, 214902), (6705, 191024), (7152, 179085), (8940, 143268), (10728, 119390), (11920, 107451), (11939, 107280), (13410, 95512), (17880, 71634), (21456, 59695), (23878, 53640), (26820, 47756), (35760, 35817)]