2016602320

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1\times {\mathrm{643}}^1$

素因数の和:1052

約数の個数: 80

約数和(自身を含む): 4743446400

約数和(自身を除く): 2726844080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 199, 394, 398, 643, 788, 796, 985, 995, 1286, 1576, 1592, 1970, 1990, 2572, 3152, 3184, 3215, 3940, 3980, 5144, 6430, 7880, 7960, 10288, 12860, 15760, 15920, 25720, 39203, 51440, 78406, 126671, 127957, 156812, 196015, 253342, 255914, 313624, 392030, 506684, 511828, 627248, 633355, 639785, 784060, 1013368, 1023656, 1266710, 1279570, 1568120, 2026736, 2047312, 2533420, 2559140, 3136240, 5066840, 5118280, 10133680, 10236560, 25207529, 50415058, 100830116, 126037645, 201660232, 252075290, 403320464, 504150580, 1008301160, 2016602320]

約数ペア:

[(1, 2016602320), (2, 1008301160), (4, 504150580), (5, 403320464), (8, 252075290), (10, 201660232), (16, 126037645), (20, 100830116), (40, 50415058), (80, 25207529), (197, 10236560), (199, 10133680), (394, 5118280), (398, 5066840), (643, 3136240), (788, 2559140), (796, 2533420), (985, 2047312), (995, 2026736), (1286, 1568120), (1576, 1279570), (1592, 1266710), (1970, 1023656), (1990, 1013368), (2572, 784060), (3152, 639785), (3184, 633355), (3215, 627248), (3940, 511828), (3980, 506684), (5144, 392030), (6430, 313624), (7880, 255914), (7960, 253342), (10288, 196015), (12860, 156812), (15760, 127957), (15920, 126671), (25720, 78406), (39203, 51440)]