21289140720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{129119}}^1$

素因数の和:129367

約数の個数: 120

約数和(自身を含む): 71808796800

約数和(自身を除く): 50519656080

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, 180, 229, 240, 360, 458, 687, 720, 916, 1145, 1374, 1832, 2061, 2290, 2748, 3435, 3664, 4122, 4580, 5496, 6870, 8244, 9160, 10305, 10992, 13740, 16488, 18320, 20610, 27480, 32976, 41220, 54960, 82440, 129119, 164880, 258238, 387357, 516476, 645595, 774714, 1032952, 1162071, 1291190, 1549428, 1936785, 2065904, 2324142, 2582380, 3098856, 3873570, 4648284, 5164760, 5810355, 6197712, 7747140, 9296568, 10329520, 11620710, 15494280, 18593136, 23241420, 29568251, 30988560, 46482840, 59136502, 88704753, 92965680, 118273004, 147841255, 177409506, 236546008, 266114259, 295682510, 354819012, 443523765, 473092016, 532228518, 591365020, 709638024, 887047530, 1064457036, 1182730040, 1330571295, 1419276048, 1774095060, 2128914072, 2365460080, 2661142590, 3548190120, 4257828144, 5322285180, 7096380240, 10644570360, 21289140720]

約数ペア:

[(1, 21289140720), (2, 10644570360), (3, 7096380240), (4, 5322285180), (5, 4257828144), (6, 3548190120), (8, 2661142590), (9, 2365460080), (10, 2128914072), (12, 1774095060), (15, 1419276048), (16, 1330571295), (18, 1182730040), (20, 1064457036), (24, 887047530), (30, 709638024), (36, 591365020), (40, 532228518), (45, 473092016), (48, 443523765), (60, 354819012), (72, 295682510), (80, 266114259), (90, 236546008), (120, 177409506), (144, 147841255), (180, 118273004), (229, 92965680), (240, 88704753), (360, 59136502), (458, 46482840), (687, 30988560), (720, 29568251), (916, 23241420), (1145, 18593136), (1374, 15494280), (1832, 11620710), (2061, 10329520), (2290, 9296568), (2748, 7747140), (3435, 6197712), (3664, 5810355), (4122, 5164760), (4580, 4648284), (5496, 3873570), (6870, 3098856), (8244, 2582380), (9160, 2324142), (10305, 2065904), (10992, 1936785), (13740, 1549428), (16488, 1291190), (18320, 1162071), (20610, 1032952), (27480, 774714), (32976, 645595), (41220, 516476), (54960, 387357), (82440, 258238), (129119, 164880)]