2016396560

素因数分解:

$2^4\times 5^1\times {\mathrm{643}}^1\times {\mathrm{39199}}^1$

素因数の和:39855

約数の個数: 40

約数和(自身を含む): 4695532800

約数和(自身を除く): 2679136240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 643, 1286, 2572, 3215, 5144, 6430, 10288, 12860, 25720, 39199, 51440, 78398, 156796, 195995, 313592, 391990, 627184, 783980, 1567960, 3135920, 25204957, 50409914, 100819828, 126024785, 201639656, 252049570, 403279312, 504099140, 1008198280, 2016396560]

約数ペア:

[(1, 2016396560), (2, 1008198280), (4, 504099140), (5, 403279312), (8, 252049570), (10, 201639656), (16, 126024785), (20, 100819828), (40, 50409914), (80, 25204957), (643, 3135920), (1286, 1567960), (2572, 783980), (3215, 627184), (5144, 391990), (6430, 313592), (10288, 195995), (12860, 156796), (25720, 78398), (39199, 51440)]